TY  - CONF
AU  - Stanić, Filip
AU  - Jaćimović, Nenad
AU  - Govedarica, Ognjen
AU  - Lekić, Branislava
AU  - Vasilić, Željko
AU  - Ranđelović, Anja
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3487
C3  - 16th International Conference on Urban Drainage, Delft, June, 2024
T1  - An improved semi-analytical solution for determining water permeability of highly pervious porous materials
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3487
ER  - 

@conference{
author = "Stanić, Filip and Jaćimović, Nenad and Govedarica, Ognjen and Lekić, Branislava and Vasilić, Željko and Ranđelović, Anja",
year = "2024",
journal = "16th International Conference on Urban Drainage, Delft, June, 2024",
title = "An improved semi-analytical solution for determining water permeability of highly pervious porous materials",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3487"
}

Stanić, F., Jaćimović, N., Govedarica, O., Lekić, B., Vasilić, Ž.,& Ranđelović, A.. (2024). An improved semi-analytical solution for determining water permeability of highly pervious porous materials. in 16th International Conference on Urban Drainage, Delft, June, 2024.
https://hdl.handle.net/21.15107/rcub_grafar_3487

Stanić F, Jaćimović N, Govedarica O, Lekić B, Vasilić Ž, Ranđelović A. An improved semi-analytical solution for determining water permeability of highly pervious porous materials. in 16th International Conference on Urban Drainage, Delft, June, 2024. 2024;.
https://hdl.handle.net/21.15107/rcub_grafar_3487 .

Stanić, Filip, Jaćimović, Nenad, Govedarica, Ognjen, Lekić, Branislava, Vasilić, Željko, Ranđelović, Anja, "An improved semi-analytical solution for determining water permeability of highly pervious porous materials" in 16th International Conference on Urban Drainage, Delft, June, 2024 (2024),
https://hdl.handle.net/21.15107/rcub_grafar_3487 .

TY  - CONF
AU  - Vasilić, Željko
AU  - Stanić, Filip
AU  - Ranđelović, Anja
PY  - 2023
UR  - https://www.iees.tuc.gr/
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3495
AB  - Introduction. When designing the road drainage system special attention is given to environmental
protection, which requires the removal of potentially hazardous elements via separators to the required
degree, usually defined by the local stakeholders and legislation. Afterwards, water is simply transferred
to a nearby convenient recipient. Modern engineering practice however dictates the design of sustainable
drainage systems (SuDS) for the collected water, which need to provide attenuation of the runoff and must
be designed to mimic the natural catchment conditions with as little disruption of natural processes as
possible [1]. SuDS are designed to maximize opportunities and benefits that can be secured from surface
water management: water quantity, water quality, amenity and biodiversity [2]. Construction of roadside
infiltration basins is one of the measures used for these purposes. Infiltration basins are relatively simple
engineering objects designed and constructed as excavations with a corresponding filter layer at the
bottom (gravel or crushed stone) [3]. Essentially, they are retention spaces for permanent water retention
that receive collected stormwater runoff and drain it slowly into the surrounding soil. Retention space of
infiltration basin provides a reduction in the maximum peak runoff value [4], while runoff quality is also
improved by filtration through the filter layer and soil. There are number of similar type objects that can
be used for this purpose, applicable to different sizes and types of surface purpose (residential, parking
lots, etc.) [2]. The main advantages of infiltration basins’ application are 1) the relatively inexpensive cost
of construction, 2) low space usage and 3) possibility of application in areas where there is no conventional
stormwater sewer network or river that could serve as a recipient of stormwater runoff. This makes them
particularly suitable for construction next to the roads of significant importance such as highways [5]. The
retention of runoff contaminants using infiltration basins have been proven through the testing of such
facilities after many years of use [6]. On the other hand, inefficiency in the operation of infiltration basins
can be caused by the construction on land of poor water permeability and high groundwater levels. The
stability of the surrounding structures can also be compromised given that infiltration increases the
moisture of the surrounding soil [7]. Over time, there may be a decrease in the efficiency of infiltration due
to clogging of the filter layer, caused by sedimentation of suspended particles. A common mistake being
made in the design procedure is wrongful selection of the design storm for sizing the infiltration basin, i.e.
the same design storm is used both for the collection system and the infiltration basin. Short duration,
high intensity design storms are used for the design of the collection system as they result in maximum
runoff peak values. Long duration, low intensity design storms should be used for the design of the
infiltration basin itself as they result in much greater runoff volume which is essential for sizing of the
infiltration basin.
To ensure the efficiency and sustainable functioning of the infiltration basin, design procedure should
carefully address the following: 1) selection of the proper design storm and 2) all aspects relevant for soil
infiltration. Basic guidelines and recommendations for the design of similar type objects can be found in
literature but are lacking in detailed description of the design procedure and infiltration calculation ([2],
[8]). This paper presents a comprehensive methodology for the design and operational analysis of
infiltration basins for road runoff that is incorporated into STORMEE – STORMwater Environmental
Efficiency toolkit. Presented methodology encompasses all relevant hydrological and hydraulic analyses in
detail, which overcomes the shortcomings present in currently available regulations and design guidelines,
and is packed into a user-friendly interface. Showcased here is the analysis of a field scale infiltration basin
346
International Conference of the International Ecological Engineering Society, Chania, Greece, October 1 – 5, 2023
intended for runoff control from the section of the railway in Serbia. STORMEE allows
PB  - International Ecological Engineering Society
C3  - 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023
T1  - Science behind STORMEE - STORMwater Environmental Efficiency toolkit: 1) infiltration basin
EP  - 348
SP  - 345
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3495
ER  - 

@conference{
author = "Vasilić, Željko and Stanić, Filip and Ranđelović, Anja",
year = "2023",
abstract = "Introduction. When designing the road drainage system special attention is given to environmental
protection, which requires the removal of potentially hazardous elements via separators to the required
degree, usually defined by the local stakeholders and legislation. Afterwards, water is simply transferred
to a nearby convenient recipient. Modern engineering practice however dictates the design of sustainable
drainage systems (SuDS) for the collected water, which need to provide attenuation of the runoff and must
be designed to mimic the natural catchment conditions with as little disruption of natural processes as
possible [1]. SuDS are designed to maximize opportunities and benefits that can be secured from surface
water management: water quantity, water quality, amenity and biodiversity [2]. Construction of roadside
infiltration basins is one of the measures used for these purposes. Infiltration basins are relatively simple
engineering objects designed and constructed as excavations with a corresponding filter layer at the
bottom (gravel or crushed stone) [3]. Essentially, they are retention spaces for permanent water retention
that receive collected stormwater runoff and drain it slowly into the surrounding soil. Retention space of
infiltration basin provides a reduction in the maximum peak runoff value [4], while runoff quality is also
improved by filtration through the filter layer and soil. There are number of similar type objects that can
be used for this purpose, applicable to different sizes and types of surface purpose (residential, parking
lots, etc.) [2]. The main advantages of infiltration basins’ application are 1) the relatively inexpensive cost
of construction, 2) low space usage and 3) possibility of application in areas where there is no conventional
stormwater sewer network or river that could serve as a recipient of stormwater runoff. This makes them
particularly suitable for construction next to the roads of significant importance such as highways [5]. The
retention of runoff contaminants using infiltration basins have been proven through the testing of such
facilities after many years of use [6]. On the other hand, inefficiency in the operation of infiltration basins
can be caused by the construction on land of poor water permeability and high groundwater levels. The
stability of the surrounding structures can also be compromised given that infiltration increases the
moisture of the surrounding soil [7]. Over time, there may be a decrease in the efficiency of infiltration due
to clogging of the filter layer, caused by sedimentation of suspended particles. A common mistake being
made in the design procedure is wrongful selection of the design storm for sizing the infiltration basin, i.e.
the same design storm is used both for the collection system and the infiltration basin. Short duration,
high intensity design storms are used for the design of the collection system as they result in maximum
runoff peak values. Long duration, low intensity design storms should be used for the design of the
infiltration basin itself as they result in much greater runoff volume which is essential for sizing of the
infiltration basin.
To ensure the efficiency and sustainable functioning of the infiltration basin, design procedure should
carefully address the following: 1) selection of the proper design storm and 2) all aspects relevant for soil
infiltration. Basic guidelines and recommendations for the design of similar type objects can be found in
literature but are lacking in detailed description of the design procedure and infiltration calculation ([2],
[8]). This paper presents a comprehensive methodology for the design and operational analysis of
infiltration basins for road runoff that is incorporated into STORMEE – STORMwater Environmental
Efficiency toolkit. Presented methodology encompasses all relevant hydrological and hydraulic analyses in
detail, which overcomes the shortcomings present in currently available regulations and design guidelines,
and is packed into a user-friendly interface. Showcased here is the analysis of a field scale infiltration basin
346
International Conference of the International Ecological Engineering Society, Chania, Greece, October 1 – 5, 2023
intended for runoff control from the section of the railway in Serbia. STORMEE allows",
publisher = "International Ecological Engineering Society",
journal = "12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023",
title = "Science behind STORMEE - STORMwater Environmental Efficiency toolkit: 1) infiltration basin",
pages = "348-345",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3495"
}

Vasilić, Ž., Stanić, F.,& Ranđelović, A.. (2023). Science behind STORMEE - STORMwater Environmental Efficiency toolkit: 1) infiltration basin. in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023
International Ecological Engineering Society., 345-348.
https://hdl.handle.net/21.15107/rcub_grafar_3495

Vasilić Ž, Stanić F, Ranđelović A. Science behind STORMEE - STORMwater Environmental Efficiency toolkit: 1) infiltration basin. in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023. 2023;:345-348.
https://hdl.handle.net/21.15107/rcub_grafar_3495 .

Vasilić, Željko, Stanić, Filip, Ranđelović, Anja, "Science behind STORMEE - STORMwater Environmental Efficiency toolkit: 1) infiltration basin" in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023 (2023):345-348,
https://hdl.handle.net/21.15107/rcub_grafar_3495 .

TY  - CONF
AU  - Stanić, Filip
AU  - Vasilić, Željko
AU  - Ranđelović, Anja
PY  - 2023
UR  - https://www.iees.tuc.gr/
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3494
AB  - Introduction: Green roofs are one of the most common multifunctional types of Nature Based Systems
(NBS) serving primarily for mitigation of the urban runoff (Stovin et al. 2012, Versini et al. 2020). Since
relying on the soil water interaction, green roofs also have a significant impact on reduction of the local
temperature, which has not been so deterministically investigated in the past. To simulate the change of
substrate temperature and water content accurately and continuously, it is necessary to couple models
for water and heat transport through (un)saturated porous media which has been done in many studies
(Campbell 1985, Bittelli et al. 2008). The core of these models are the partial differential equations that
are strongly nonlinear, especially Richards (1931) equation describing the unsaturated water flow, and
hence their numerical solving is still challenging from the perspective of the computational time, numerical
stability, and accuracy. Linearization of Richards equation has first been proposed by Ross (2003) who
developed a stable explicit numerical scheme for solving it by using Taylor series and Kirchhoff potential
to express unsaturated water fluxes, while similar approach has not been applied yet to Heat equation.
The main deficiency of this approach as far as Richards equation is concerned is the necessity to use finer
time discretization to avoid greater water balance errors, as well as the complex and often inaccurate
transition from the unsaturated to saturated state and vice versa.
To develop a robust and accurate numerical tool for consecutive solving of Richards and Heat equations,
several improvements compared to the existing approaches have been made. Firstly, Taylor series has also
been applied on soil heat fluxes creating rather simple and mathematically elegant explicit numerical
scheme for solving Heat equation. Secondly, unlike in Ross’s method where only the first term of Taylor
series is used, here are used the first and the second term to create more accurate approximation of water
fluxes. Also, unlike in Ross (2003), here Richards equation is solved strictly with respect to Kirchhoff
potential to smooth the transition between unsaturated and saturated water flow. Finally, the
evapotranspiration rate at the top surface is not predefined but determined from the latent heat flux
computed through the iterative solving of Richards and Heat equations. Here are presented preliminary
simulation results of the proposed coupled model obtained by using approximately six days long timeseries
of the measured meteorological data taken from Bittelli et al. (2008).
PB  - International Ecological Engineering Society
C3  - 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023
T1  - Novel computational tool for coupling water and heat transport models – application on green roofs
EP  - 221
SP  - 218
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3494
ER  - 

@conference{
author = "Stanić, Filip and Vasilić, Željko and Ranđelović, Anja",
year = "2023",
abstract = "Introduction: Green roofs are one of the most common multifunctional types of Nature Based Systems
(NBS) serving primarily for mitigation of the urban runoff (Stovin et al. 2012, Versini et al. 2020). Since
relying on the soil water interaction, green roofs also have a significant impact on reduction of the local
temperature, which has not been so deterministically investigated in the past. To simulate the change of
substrate temperature and water content accurately and continuously, it is necessary to couple models
for water and heat transport through (un)saturated porous media which has been done in many studies
(Campbell 1985, Bittelli et al. 2008). The core of these models are the partial differential equations that
are strongly nonlinear, especially Richards (1931) equation describing the unsaturated water flow, and
hence their numerical solving is still challenging from the perspective of the computational time, numerical
stability, and accuracy. Linearization of Richards equation has first been proposed by Ross (2003) who
developed a stable explicit numerical scheme for solving it by using Taylor series and Kirchhoff potential
to express unsaturated water fluxes, while similar approach has not been applied yet to Heat equation.
The main deficiency of this approach as far as Richards equation is concerned is the necessity to use finer
time discretization to avoid greater water balance errors, as well as the complex and often inaccurate
transition from the unsaturated to saturated state and vice versa.
To develop a robust and accurate numerical tool for consecutive solving of Richards and Heat equations,
several improvements compared to the existing approaches have been made. Firstly, Taylor series has also
been applied on soil heat fluxes creating rather simple and mathematically elegant explicit numerical
scheme for solving Heat equation. Secondly, unlike in Ross’s method where only the first term of Taylor
series is used, here are used the first and the second term to create more accurate approximation of water
fluxes. Also, unlike in Ross (2003), here Richards equation is solved strictly with respect to Kirchhoff
potential to smooth the transition between unsaturated and saturated water flow. Finally, the
evapotranspiration rate at the top surface is not predefined but determined from the latent heat flux
computed through the iterative solving of Richards and Heat equations. Here are presented preliminary
simulation results of the proposed coupled model obtained by using approximately six days long timeseries
of the measured meteorological data taken from Bittelli et al. (2008).",
publisher = "International Ecological Engineering Society",
journal = "12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023",
title = "Novel computational tool for coupling water and heat transport models – application on green roofs",
pages = "221-218",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3494"
}

Stanić, F., Vasilić, Ž.,& Ranđelović, A.. (2023). Novel computational tool for coupling water and heat transport models – application on green roofs. in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023
International Ecological Engineering Society., 218-221.
https://hdl.handle.net/21.15107/rcub_grafar_3494

Stanić F, Vasilić Ž, Ranđelović A. Novel computational tool for coupling water and heat transport models – application on green roofs. in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023. 2023;:218-221.
https://hdl.handle.net/21.15107/rcub_grafar_3494 .

Stanić, Filip, Vasilić, Željko, Ranđelović, Anja, "Novel computational tool for coupling water and heat transport models – application on green roofs" in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023 (2023):218-221,
https://hdl.handle.net/21.15107/rcub_grafar_3494 .

TY  - CONF
AU  - Ranđelović, Anja
AU  - Jovanović-Srzentić, Snežana
AU  - Stošić, Maja
AU  - Stanić, Filip
AU  - Vasilić, Željko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3471
AB  - Many studies report on the ability of natural environments and accessible green and blue
spaces in the cities to diminish climate change impacts and lower the possibility of disasters. However,
that is not the full extent of their effects. Among others, these urban spaces enhanced with nature-based
solutions (NBS) can support active recreation and allow places for relaxation and consolidation from daily
stress.
There is some evidence that NBS with their extensive greenery can give the positive impact on numerous
psychological and physiological outcomes. Urban areas rich in greenery and biodiversity provide great
opportunity for humans to come closer to nature and improve their health and well-being through
interaction with a variety of flora and fauna species. Specifically, there is evidence that mental health
(anxiety, stress levels) and psychological wellbeing may benefit from plant species richness (Fuller et al.,
2007), animal species richness (Dallimer et al., 2012) and soil biodiversity (Wall et al., 2015). Furthermore,
it has been shown that soil organisms, through their roles in controlling soil-borne pathogens and pests
(soil vitality) lessen the prevalence of allergic diseases (Wall et al. 2015). Replacing or restoring the soil,
regulation of water conditions, enabling plant species diversity - especially native ones, can substantially
increase soil biodiversity leading to recovery of the natural soil food web, so the pathogen risk would be
minimized with respect to communicable and non-communicable diseases (Crump et al., 2021). However,
urban green spaces can also be linked to negative health outcomes, such as allergic reactions, or vectorborne diseases, as the result of increased exposure to allergenic pollen or increased amount of disease
vectors in urban green environments (Calaza‐Martinez and Iglesias‐Díaz, 2016). These potential harmful
effects may be addressed through the adequate design, maintenance and management of urban green
spaces and selection of species.
Although different studies show some positive (or negative) effects of NBS on public health and wellbeing
(PH&WB), still it is a challenge to actually quantify the extent of the effects, and also attribute the quantity
to particular characteristics of an NBS. This is why EC has established a call topic SC5-14-2019 - Visionary
and integrated solutions to improve well-being and health in cities, to fund projects that will implement
different types of solutions that are capable of enhancing PH&WB in cities and assess their impacts. Once
demonstration sites are developed and assessed, key findings and indicators will be included in the already
available EC Handbook of indicators - Evaluating the impact of nature-based solutions: A handbook for
practitioners.
This paper presents preliminary findings in the endeavour to quantify urban greenery’s and biodiversity’s
effects on PH&WB, by integrating subjective, objective, physiological, and psychological monitoring
approaches and producing a multifaceted understanding that is essential for policymakers, urban planners,
and public health professionals to design sustainable and nature-inclusive cities that promote the wellbeing of their inhabitants.
PB  - International Ecological Engineering Society
C3  - 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023
T1  - Urban greenery’s effects on Public Health and Wellbeing of Citizens and how to assess it – preliminary euPOLIS findings
EP  - 130
SP  - 127
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3471
ER  - 

@conference{
author = "Ranđelović, Anja and Jovanović-Srzentić, Snežana and Stošić, Maja and Stanić, Filip and Vasilić, Željko",
year = "2023",
abstract = "Many studies report on the ability of natural environments and accessible green and blue
spaces in the cities to diminish climate change impacts and lower the possibility of disasters. However,
that is not the full extent of their effects. Among others, these urban spaces enhanced with nature-based
solutions (NBS) can support active recreation and allow places for relaxation and consolidation from daily
stress.
There is some evidence that NBS with their extensive greenery can give the positive impact on numerous
psychological and physiological outcomes. Urban areas rich in greenery and biodiversity provide great
opportunity for humans to come closer to nature and improve their health and well-being through
interaction with a variety of flora and fauna species. Specifically, there is evidence that mental health
(anxiety, stress levels) and psychological wellbeing may benefit from plant species richness (Fuller et al.,
2007), animal species richness (Dallimer et al., 2012) and soil biodiversity (Wall et al., 2015). Furthermore,
it has been shown that soil organisms, through their roles in controlling soil-borne pathogens and pests
(soil vitality) lessen the prevalence of allergic diseases (Wall et al. 2015). Replacing or restoring the soil,
regulation of water conditions, enabling plant species diversity - especially native ones, can substantially
increase soil biodiversity leading to recovery of the natural soil food web, so the pathogen risk would be
minimized with respect to communicable and non-communicable diseases (Crump et al., 2021). However,
urban green spaces can also be linked to negative health outcomes, such as allergic reactions, or vectorborne diseases, as the result of increased exposure to allergenic pollen or increased amount of disease
vectors in urban green environments (Calaza‐Martinez and Iglesias‐Díaz, 2016). These potential harmful
effects may be addressed through the adequate design, maintenance and management of urban green
spaces and selection of species.
Although different studies show some positive (or negative) effects of NBS on public health and wellbeing
(PH&WB), still it is a challenge to actually quantify the extent of the effects, and also attribute the quantity
to particular characteristics of an NBS. This is why EC has established a call topic SC5-14-2019 - Visionary
and integrated solutions to improve well-being and health in cities, to fund projects that will implement
different types of solutions that are capable of enhancing PH&WB in cities and assess their impacts. Once
demonstration sites are developed and assessed, key findings and indicators will be included in the already
available EC Handbook of indicators - Evaluating the impact of nature-based solutions: A handbook for
practitioners.
This paper presents preliminary findings in the endeavour to quantify urban greenery’s and biodiversity’s
effects on PH&WB, by integrating subjective, objective, physiological, and psychological monitoring
approaches and producing a multifaceted understanding that is essential for policymakers, urban planners,
and public health professionals to design sustainable and nature-inclusive cities that promote the wellbeing of their inhabitants.",
publisher = "International Ecological Engineering Society",
journal = "12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023",
title = "Urban greenery’s effects on Public Health and Wellbeing of Citizens and how to assess it – preliminary euPOLIS findings",
pages = "130-127",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3471"
}

Ranđelović, A., Jovanović-Srzentić, S., Stošić, M., Stanić, F.,& Vasilić, Ž.. (2023). Urban greenery’s effects on Public Health and Wellbeing of Citizens and how to assess it – preliminary euPOLIS findings. in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023
International Ecological Engineering Society., 127-130.
https://hdl.handle.net/21.15107/rcub_grafar_3471

Ranđelović A, Jovanović-Srzentić S, Stošić M, Stanić F, Vasilić Ž. Urban greenery’s effects on Public Health and Wellbeing of Citizens and how to assess it – preliminary euPOLIS findings. in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023. 2023;:127-130.
https://hdl.handle.net/21.15107/rcub_grafar_3471 .

Ranđelović, Anja, Jovanović-Srzentić, Snežana, Stošić, Maja, Stanić, Filip, Vasilić, Željko, "Urban greenery’s effects on Public Health and Wellbeing of Citizens and how to assess it – preliminary euPOLIS findings" in 12th International Conference of the International Ecological Engineering Society: Closed Cycles and the Circular Society 2023 The Power of Ecological Engineering, Chania - Greece, October 1-5, 2023 (2023):127-130,
https://hdl.handle.net/21.15107/rcub_grafar_3471 .

TY  - JOUR
AU  - Sedak, Milica
AU  - Stanić, Filip
AU  - Vasilić, Željko
AU  - Ranđelović, Anja
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3373
AB  - Zeleni krovovi zbog svoje multifunkcionalnosti predstavljaju najčešće primenjivan vid prirodom inspirisanih rešenja koja za cilj imaju unapređivanje kvaliteta života u urbanim sredinama oponašanjem prirodnih uslova pre urbanizacije. U ovom radu su analizirane dve osnovne funkcije zelenih krovova, 1) ublaženje kišnog oticaja i 2) termoregulacija u unutrašnjosti objekta. Za potrebe analize ovih funkcija primenjen je uparen model transporta vode i toplote kroz nezasićenu poroznu sredinu. Model je za potrebe ovog rada razvijeni u softverskom paketu Matlab, a baziran je na linearizaciji flukseva vode i toplote razvojem u Taylor-ov red, čime se dobija eksplicitna numerička šema za rešavanje parcijalnih diferencijalnih jednačina drugog reda. Validacija ovog efikasnog fizički zasnovanog modela obavljena je poređenjem modeliranih rezultata sa osmotrenim vrednostima preuzetim iz literature koje se odnose na tlo bez vegetacije. Zatim je na hipotetičkom primeru ekstenzivnog i intenzivnog zelenog krova sprovedena analiza uticaja debljine supstrata i navodnjavanja na ublaženje maksimalnog dreniranog oticaja i smanjenje temperature na površini krovne konstrukcije. Može se zaključiti da sa porastom debljine supstrata raste retenzioni kapacitet zelenog krova, ublažava se drenirani oticaj kao i temperaturne oscilacije unutar supstrata. Takođe, navodnjavanje ima bitnu ulogu u pogledu termoregulacije jer povećana vlažnost supstrata direktno utiče na smanjenje temperature.
T2  - Vodoprivreda
T1  - Analiza hidroloških i termoregulacionih svojstava zelenih krovova korišćenjem fizički zasnovanih modela transporta vode i toplote kroz nezasićenu poroznu sredinu
EP  - 48
IS  - 321-322
SP  - 35
VL  - 55
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3373
ER  - 

@article{
author = "Sedak, Milica and Stanić, Filip and Vasilić, Željko and Ranđelović, Anja",
year = "2023",
abstract = "Zeleni krovovi zbog svoje multifunkcionalnosti predstavljaju najčešće primenjivan vid prirodom inspirisanih rešenja koja za cilj imaju unapređivanje kvaliteta života u urbanim sredinama oponašanjem prirodnih uslova pre urbanizacije. U ovom radu su analizirane dve osnovne funkcije zelenih krovova, 1) ublaženje kišnog oticaja i 2) termoregulacija u unutrašnjosti objekta. Za potrebe analize ovih funkcija primenjen je uparen model transporta vode i toplote kroz nezasićenu poroznu sredinu. Model je za potrebe ovog rada razvijeni u softverskom paketu Matlab, a baziran je na linearizaciji flukseva vode i toplote razvojem u Taylor-ov red, čime se dobija eksplicitna numerička šema za rešavanje parcijalnih diferencijalnih jednačina drugog reda. Validacija ovog efikasnog fizički zasnovanog modela obavljena je poređenjem modeliranih rezultata sa osmotrenim vrednostima preuzetim iz literature koje se odnose na tlo bez vegetacije. Zatim je na hipotetičkom primeru ekstenzivnog i intenzivnog zelenog krova sprovedena analiza uticaja debljine supstrata i navodnjavanja na ublaženje maksimalnog dreniranog oticaja i smanjenje temperature na površini krovne konstrukcije. Može se zaključiti da sa porastom debljine supstrata raste retenzioni kapacitet zelenog krova, ublažava se drenirani oticaj kao i temperaturne oscilacije unutar supstrata. Takođe, navodnjavanje ima bitnu ulogu u pogledu termoregulacije jer povećana vlažnost supstrata direktno utiče na smanjenje temperature.",
journal = "Vodoprivreda",
title = "Analiza hidroloških i termoregulacionih svojstava zelenih krovova korišćenjem fizički zasnovanih modela transporta vode i toplote kroz nezasićenu poroznu sredinu",
pages = "48-35",
number = "321-322",
volume = "55",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3373"
}

Sedak, M., Stanić, F., Vasilić, Ž.,& Ranđelović, A.. (2023). Analiza hidroloških i termoregulacionih svojstava zelenih krovova korišćenjem fizički zasnovanih modela transporta vode i toplote kroz nezasićenu poroznu sredinu. in Vodoprivreda, 55(321-322), 35-48.
https://hdl.handle.net/21.15107/rcub_grafar_3373

Sedak M, Stanić F, Vasilić Ž, Ranđelović A. Analiza hidroloških i termoregulacionih svojstava zelenih krovova korišćenjem fizički zasnovanih modela transporta vode i toplote kroz nezasićenu poroznu sredinu. in Vodoprivreda. 2023;55(321-322):35-48.
https://hdl.handle.net/21.15107/rcub_grafar_3373 .

Sedak, Milica, Stanić, Filip, Vasilić, Željko, Ranđelović, Anja, "Analiza hidroloških i termoregulacionih svojstava zelenih krovova korišćenjem fizički zasnovanih modela transporta vode i toplote kroz nezasićenu poroznu sredinu" in Vodoprivreda, 55, no. 321-322 (2023):35-48,
https://hdl.handle.net/21.15107/rcub_grafar_3373 .

TY  - CONF
AU  - Vasilić, Željko
AU  - Stanić, Miloš
AU  - Ivetić, Damjan
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3225
AB  - Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja nije jednoznačan zbog čega je identifikacija njihovog optimalnog rasporeda u mreži izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. Metodologija za sektorizaciju primenjena u ovom radu zasnovana je na primeni indeksa uniformnosti mreže (eng. Uniformity Index) čime se omogućava identifikacija zona u mreži ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijene metodologije obezbeđena je kroz implementaciju sledećih celina u jedinstveni hidroinformacioni alat: 1) algoritm za automatsku sektorizaciju mreže na klastere, 2) efikasni model za hidrauličke simulacije i 3) višekriterijumska optimizacija. Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Za poređenje stanja sistema pre i nakon sektorizacije usvojeni su sledeći indikatori performasi: 1) indeks sposobnosti adaptacije sistema (eng. Resilience Index) i 2) prosečan pritisak u zonama. Nakon identifikacije osnovnih zona bilansiranja, pažljivo odmerenim intervencijama na njihovim granicama u cilju dodatne redukcije pritiska se može uticati na potencijalno smanjenje gubitaka u mreži. Rezultati testiranja metodologije na realnom primeru distributivne mreže naseljenog mesta u Holandiji, sa primenom lokalnih kriterijuma, potvrđuju da metodologija može biti od značajne koristi u inženjerskoj praksi u procesu sektorizacije i izboru mera za smanjenje gubitaka.
PB  - Savez inženjera i tehničara Srbije
C3  - II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023
T1  - Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3225
ER  - 

@conference{
author = "Vasilić, Željko and Stanić, Miloš and Ivetić, Damjan",
year = "2023",
abstract = "Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja nije jednoznačan zbog čega je identifikacija njihovog optimalnog rasporeda u mreži izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. Metodologija za sektorizaciju primenjena u ovom radu zasnovana je na primeni indeksa uniformnosti mreže (eng. Uniformity Index) čime se omogućava identifikacija zona u mreži ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijene metodologije obezbeđena je kroz implementaciju sledećih celina u jedinstveni hidroinformacioni alat: 1) algoritm za automatsku sektorizaciju mreže na klastere, 2) efikasni model za hidrauličke simulacije i 3) višekriterijumska optimizacija. Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Za poređenje stanja sistema pre i nakon sektorizacije usvojeni su sledeći indikatori performasi: 1) indeks sposobnosti adaptacije sistema (eng. Resilience Index) i 2) prosečan pritisak u zonama. Nakon identifikacije osnovnih zona bilansiranja, pažljivo odmerenim intervencijama na njihovim granicama u cilju dodatne redukcije pritiska se može uticati na potencijalno smanjenje gubitaka u mreži. Rezultati testiranja metodologije na realnom primeru distributivne mreže naseljenog mesta u Holandiji, sa primenom lokalnih kriterijuma, potvrđuju da metodologija može biti od značajne koristi u inženjerskoj praksi u procesu sektorizacije i izboru mera za smanjenje gubitaka.",
publisher = "Savez inženjera i tehničara Srbije",
journal = "II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023",
title = "Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3225"
}

Vasilić, Ž., Stanić, M.,& Ivetić, D.. (2023). Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka. in II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023
Savez inženjera i tehničara Srbije..
https://hdl.handle.net/21.15107/rcub_grafar_3225

Vasilić Ž, Stanić M, Ivetić D. Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka. in II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3225 .

Vasilić, Željko, Stanić, Miloš, Ivetić, Damjan, "Mogućnosti primene DeNSE metode za sektorizaciju distributivnih mreža za redukciju gubitaka" in II naučna konferencija: Gubici vode u sistemu javnog vodosnabdevanja, Beograd, 9. jun, 2023 (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3225 .

TY  - CONF
AU  - Vasilić, Željko
AU  - Ivetić, Damjan
AU  - Stanić, Miloš
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3212
AB  - Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za 
kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja 
nije jednoznačan zbog čega je identifikacija njihovog optimalnog rasporeda u mreži
izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored 
osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da 
obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što 
su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. Metodologija za 
sektorizaciju primenjena u ovom radu zasnovana je na primeni indeksa uniformnosti 
mreže (eng. Uniformity Index) čime se omogućava identifikacija zona u mreži 
ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijene metodologije 
obezbeđena je kroz implementaciju sledećih celina u jedinstveni hidroinformacioni alat: 
1) algoritm za automatsku sektorizaciju mreže na klastere, 2) efikasni model za 
hidrauličke simulacije i 3) višekriterijumska optimizacija. Osnovni kriterijumi za 
vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije 
u mreži i očuvanje pouzdanosti sistema. Za poređenje stanja sistema pre i nakon 
sektorizacije usvojeni su sledeći indikatori performasi: 1) indeks sposobnosti adaptacije 
sistema (eng. Resilience Index), 2) pokazatelj zadržavanja vode u mreži (eng. Water 
Age) i 3) prosečan pritisak u zonama. Rezultati testiranja metodologije na realnom 
primeru distributivne mreže naseljenog mesta u Holandiji, sa primenom lokalnih 
kriterijuma, potvrđuju da metodologija može biti od značajne koristi u inženjerskoj praksi 
u procesu sektorizacije.
AB  - Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is 
a proven measure for proactive leakage and pressure control. Sectorization of WDN 
into an optimal system of DMAs is a hard task to achieve, especially for the existing and 
continuously operating WDN. Beside general criteria (e.g. DMA size, network length), 
sectorisation process should be driven by the case-specific criteria such as required 
number of feeds, fire flow regulations etc. This paper presents sectorization algorithm 
that utilizes newly developed uniformity index which drives the sectorization process 
and identifies clusters in the network with uniform demand. The efficiency, usability and 
succesufull application of the developed methodology is ensured through its’ 
implementation in comperhensive hydroinformatics tool encompasing: 1) algorithm for 
automatic sectorization of the network into clusters, 2) efficient model for hydraulic 
simulations and 3) multicriteria optimization. Least investment for field implementation 
and maintaining the same level of WDN’s operational efficiency are adopted as main 
criteria for solution evaluation and selection of preferable solution. To compare the state 
of the system before and after sectorization, the following performance indices were 
adopted: 1) Resilience Index, 2) Water Age and 3) average pressure in zones. Testing 
algorithm on a real-life WDN in Netherlands, subjected to the specific local design 
criteria, proved it can be a valuable decision support tool for sectorization process.
PB  - Udruženje za tehnologijiu vode i sanitarno inženjerstvo
C3  - Konferencija "Vodovodni i kanalizacioni sistemi 2023"
T1  - Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi
T1  - Sectorization of water distribution network into dmas with performance indices comparison
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3212
ER  - 

@conference{
author = "Vasilić, Željko and Ivetić, Damjan and Stanić, Miloš",
year = "2023",
abstract = "Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za 
kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja 
nije jednoznačan zbog čega je identifikacija njihovog optimalnog rasporeda u mreži
izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored 
osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da 
obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što 
su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. Metodologija za 
sektorizaciju primenjena u ovom radu zasnovana je na primeni indeksa uniformnosti 
mreže (eng. Uniformity Index) čime se omogućava identifikacija zona u mreži 
ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijene metodologije 
obezbeđena je kroz implementaciju sledećih celina u jedinstveni hidroinformacioni alat: 
1) algoritm za automatsku sektorizaciju mreže na klastere, 2) efikasni model za 
hidrauličke simulacije i 3) višekriterijumska optimizacija. Osnovni kriterijumi za 
vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije 
u mreži i očuvanje pouzdanosti sistema. Za poređenje stanja sistema pre i nakon 
sektorizacije usvojeni su sledeći indikatori performasi: 1) indeks sposobnosti adaptacije 
sistema (eng. Resilience Index), 2) pokazatelj zadržavanja vode u mreži (eng. Water 
Age) i 3) prosečan pritisak u zonama. Rezultati testiranja metodologije na realnom 
primeru distributivne mreže naseljenog mesta u Holandiji, sa primenom lokalnih 
kriterijuma, potvrđuju da metodologija može biti od značajne koristi u inženjerskoj praksi 
u procesu sektorizacije., Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is 
a proven measure for proactive leakage and pressure control. Sectorization of WDN 
into an optimal system of DMAs is a hard task to achieve, especially for the existing and 
continuously operating WDN. Beside general criteria (e.g. DMA size, network length), 
sectorisation process should be driven by the case-specific criteria such as required 
number of feeds, fire flow regulations etc. This paper presents sectorization algorithm 
that utilizes newly developed uniformity index which drives the sectorization process 
and identifies clusters in the network with uniform demand. The efficiency, usability and 
succesufull application of the developed methodology is ensured through its’ 
implementation in comperhensive hydroinformatics tool encompasing: 1) algorithm for 
automatic sectorization of the network into clusters, 2) efficient model for hydraulic 
simulations and 3) multicriteria optimization. Least investment for field implementation 
and maintaining the same level of WDN’s operational efficiency are adopted as main 
criteria for solution evaluation and selection of preferable solution. To compare the state 
of the system before and after sectorization, the following performance indices were 
adopted: 1) Resilience Index, 2) Water Age and 3) average pressure in zones. Testing 
algorithm on a real-life WDN in Netherlands, subjected to the specific local design 
criteria, proved it can be a valuable decision support tool for sectorization process.",
publisher = "Udruženje za tehnologijiu vode i sanitarno inženjerstvo",
journal = "Konferencija "Vodovodni i kanalizacioni sistemi 2023"",
title = "Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi, Sectorization of water distribution network into dmas with performance indices comparison",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3212"
}

Vasilić, Ž., Ivetić, D.,& Stanić, M.. (2023). Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi. in Konferencija "Vodovodni i kanalizacioni sistemi 2023"
Udruženje za tehnologijiu vode i sanitarno inženjerstvo..
https://hdl.handle.net/21.15107/rcub_grafar_3212

Vasilić Ž, Ivetić D, Stanić M. Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi. in Konferencija "Vodovodni i kanalizacioni sistemi 2023". 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3212 .

Vasilić, Željko, Ivetić, Damjan, Stanić, Miloš, "Sektorizacija vodovodne mreže na osnovne zone bilansiranja sa poređenjem indikatora performansi" in Konferencija "Vodovodni i kanalizacioni sistemi 2023" (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3212 .

TY  - CONF
AU  - Ivetić, Damjan
AU  - Vasilić, Željko
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3146
AB  - Ispiranje vodovodne mreže je osnovna aktivna fizička mera za čišćenje cevi vodovodne mreže sa ciljem održavanja i unapređenja kvaliteta vode za piće. Najčešće se primenjuju tradicionalna, odnosno konvencionalna, tehnika ispiranja i takozvana tehnika ispiranja u jednom pravcu. U ovom radu fokus je stavljen na tehniku ispiranja u jednom pravcu budući da se poslednjih decenija primarno ona koristi zbog određenih prednosti u odnosu na tradicionalnu tehniku. Ispiranje u jednom pravcu se može koristiti u formi reaktivnog odgovora nakon akcidenta sa kvalitetom vode (npr pojava zamućenja vode) ili kao deo protokola za održavanje kvaliteta pijaće vode u redovnim operativnim uslovima. Dobra praksa je pokazala da je neophodno imati plan ispiranja kojim se definiše sekvenca poteznih ispiranja za efikasno ispiranje određenog dela vodovodne mreže. Definisanje plana ispiranja se i dalje najčešće vrši „ručno“ uprkos činjenici da to predstavlja složen i dugotrajan proces. U ovom radu se identifikuju i analiziraju ključni kriterijumi za planiranje ispiranja: geometrijski, hidraulički i ekonomski. Predlaže se okvir za optimizaciju efikasnosti učinka i troškova implementacije, kojim se obezbeđuje bolja kontrola i ujednačenost efikasnosti ispiranja kao i realna procena troškova implementacije plana. Predstavljen je i razvijeni hidroinformatički alat (algoritam) za planiranje ispiranja i analizirani su rezultati primene na primeru jedne zone za ispiranje u gradu Amsterdamu u Holandiji.
AB  - Water distribution network flushing is one of the basic active physical activities for pipe cleaning aiming to preserve and enhance the drinking water quality. Most frequently used techniques are traditional, or conventional, flushing and unidirectional flushing. In this paper, focus is placed on the unidirectional flushing as in past decades, well-equipped water utilities are preferring this technique due to the several advantages over traditional flushing. Unidirectional flushing can be applied in the form of the reactive response after the water quality accident (e.g. discoloration) or within a regular maintenance protocol, under regular operating conditions. Either way, good flushing practice has shown that a flushing plan is needed to define the sequence of the designed flushing operations aiming to allow for effective and efficient discoloration risk mitigation. Design of a flushing plan is still, commonly, a “manual” job, despite the fact that is complex and time-consuming task. Here key criteria for flushing planning are identified and analyzed: geometric, hydraulic and economic. A framework for efficiency and cost optimization is suggested, enabling better control and uniformity of the flushing effectiveness, and providing realistic estimates of the flushing cost. Developed hydroinformatic tool (algorithm) for flushing planning is presented and results of the application on the flushing zone in Amsterdam, Netherlands, are analyzed.
PB  - Udruženje za tehnologijiu vode i sanitarno inženjerstvo
C3  - Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača
T1  - Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije
T1  - Water distribution networks flushing planning: framework for optimization of implementation efficiency and cost
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3146
ER  - 

@conference{
author = "Ivetić, Damjan and Vasilić, Željko",
year = "2023",
abstract = "Ispiranje vodovodne mreže je osnovna aktivna fizička mera za čišćenje cevi vodovodne mreže sa ciljem održavanja i unapređenja kvaliteta vode za piće. Najčešće se primenjuju tradicionalna, odnosno konvencionalna, tehnika ispiranja i takozvana tehnika ispiranja u jednom pravcu. U ovom radu fokus je stavljen na tehniku ispiranja u jednom pravcu budući da se poslednjih decenija primarno ona koristi zbog određenih prednosti u odnosu na tradicionalnu tehniku. Ispiranje u jednom pravcu se može koristiti u formi reaktivnog odgovora nakon akcidenta sa kvalitetom vode (npr pojava zamućenja vode) ili kao deo protokola za održavanje kvaliteta pijaće vode u redovnim operativnim uslovima. Dobra praksa je pokazala da je neophodno imati plan ispiranja kojim se definiše sekvenca poteznih ispiranja za efikasno ispiranje određenog dela vodovodne mreže. Definisanje plana ispiranja se i dalje najčešće vrši „ručno“ uprkos činjenici da to predstavlja složen i dugotrajan proces. U ovom radu se identifikuju i analiziraju ključni kriterijumi za planiranje ispiranja: geometrijski, hidraulički i ekonomski. Predlaže se okvir za optimizaciju efikasnosti učinka i troškova implementacije, kojim se obezbeđuje bolja kontrola i ujednačenost efikasnosti ispiranja kao i realna procena troškova implementacije plana. Predstavljen je i razvijeni hidroinformatički alat (algoritam) za planiranje ispiranja i analizirani su rezultati primene na primeru jedne zone za ispiranje u gradu Amsterdamu u Holandiji., Water distribution network flushing is one of the basic active physical activities for pipe cleaning aiming to preserve and enhance the drinking water quality. Most frequently used techniques are traditional, or conventional, flushing and unidirectional flushing. In this paper, focus is placed on the unidirectional flushing as in past decades, well-equipped water utilities are preferring this technique due to the several advantages over traditional flushing. Unidirectional flushing can be applied in the form of the reactive response after the water quality accident (e.g. discoloration) or within a regular maintenance protocol, under regular operating conditions. Either way, good flushing practice has shown that a flushing plan is needed to define the sequence of the designed flushing operations aiming to allow for effective and efficient discoloration risk mitigation. Design of a flushing plan is still, commonly, a “manual” job, despite the fact that is complex and time-consuming task. Here key criteria for flushing planning are identified and analyzed: geometric, hydraulic and economic. A framework for efficiency and cost optimization is suggested, enabling better control and uniformity of the flushing effectiveness, and providing realistic estimates of the flushing cost. Developed hydroinformatic tool (algorithm) for flushing planning is presented and results of the application on the flushing zone in Amsterdam, Netherlands, are analyzed.",
publisher = "Udruženje za tehnologijiu vode i sanitarno inženjerstvo",
journal = "Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača",
title = "Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije, Water distribution networks flushing planning: framework for optimization of implementation efficiency and cost",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3146"
}

Ivetić, D.,& Vasilić, Ž.. (2023). Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije. in Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača
Udruženje za tehnologijiu vode i sanitarno inženjerstvo..
https://hdl.handle.net/21.15107/rcub_grafar_3146

Ivetić D, Vasilić Ž. Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije. in Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača. 2023;.
https://hdl.handle.net/21.15107/rcub_grafar_3146 .

Ivetić, Damjan, Vasilić, Željko, "Planiranje ispiranja vodovodnih mreža: okvir za optimizaciju efikasnosti učinka i troškova implementacije" in Konferencija Vodovodni i kanalizacioni sistemi, 24– 26. maj 2023. godine, Banja Koviljača (2023),
https://hdl.handle.net/21.15107/rcub_grafar_3146 .

TY  - JOUR
AU  - Vasilić, Željko
AU  - Stanić, Filip
AU  - Ranđelović, Anja
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2935
AB  - Infiltraciona polja predstavljaju jednu od mera koja se
koristi za kontrolisano prihvatanje oticaja sa
saobraćajnica. Svojim retenzionim prostorom ovi
objekti obezbeĊuju smanjenje maksimalne vrednosti
oticaja, kao i poboljšanje njegovog kvaliteta filtracijom
kroz filtarski sloj u okolno zemljište. Da bi se
obezbedila efikasnost i održivo funkcionisanje
infiltracionog polja, prilikom projektovanja se pažljivo
moraju: 1) odabrati merodavne raĉunske kiše i 2)
razmotriti svi aspekti od znaĉaja za infiltraciju.
Inženjerima u Srbiji koji se bave projektovanjem
odvodnjavanja saobraćajnica na raspolaganju je
„Priruĉnik za projektovanje puteva u Republici Srbiji“,
kojim objekti ovog tipa nisu obuhvaćeni. U stranoj
literaturi se mogu naći osnovne smernice i preporuke za
dimenzionisanje, ali takoĊe bez detaljnijeg opisa
postupka dimenzionisanja i proraĉuna infiltracije. U
ovom radu je prikazana sveobuhvatna metodologija za
proraĉun i analizu infiltracionih polja namenjenih za
prihvatanje oticaja sa saobraćajnica. Osnovna prednost
predložene metodologije je objedinjavanje svih
relevantnih hidroloških i hidrauliĉkih analiza, ĉime se
nadomešćuju nedostaci prisutni u trenutno dostupnim
pravilnicima i smernicama za projektovanje.
Metodologija je primenjena na realnom primeru
infiltracionog polja namenjenog za prihvatanje oticaja
sa deonice trase železnice Novi Sad – Subotica.
Implementacija metodologije u razvijeni softverski alat
omogućava korisniku da na efikasan naĉin vrši analize
za razliĉite ulazne podatke i ispita razliĉita varijantna
rešenja.
AB  - Stormwater infiltration fields are one of sustainable
measures used for the control of road runoff. Field’s
retention space ensures a reduction in peak runoff
values, while runoff quality is also improved as a result
of infiltration to the surrounding soil. To ensure the
efficiency and sustainable functioning of the infiltration
field, design procedure should carefully address the
following: 1) selection of the proper design storm and 2)
all aspects relevant for soil infiltration. Document
"Guidelines for the road design in the Republic of
Serbia" is available to engineers dealing with the road
drainage design in Serbia. However, it does not
recognize this type of engineering objects. Basic
guidelines and recommendations for the design can be
found in literature, but also without a detailed
description of the design procedure and infiltration
calculation. This paper presents a comprehensive
methodology for the calculation and operational
analysis of infiltration fields for road runoff. Presented
methodology encompasses all relevant hydrological and
hydraulic analyses in detail, which overcomes the
shortcomings present in currently available regulations
and design guidelines. The methodology was applied on
a real example of an infiltration field intended for runoff
control from the section of the railway Novi Sad -
Subotica. Methodology is implemented in a software
tool, allowing the user to efficiently perform analyses
for different input data and investigate alternative
designs.
PB  - Srpsko društvo za odvodnjavanje i navodnjavanje
PB  - Akademija inženjerskih nauka Srbije
T2  - Vodoprivreda
T1  - Metoologija za proračun i analizu infiltracionih polja za prihvatanje oticaja sa saobraćajnica
EP  - 224
IS  - 319-320
SP  - 213
VL  - 54
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2935
ER  - 

@article{
author = "Vasilić, Željko and Stanić, Filip and Ranđelović, Anja",
year = "2022",
abstract = "Infiltraciona polja predstavljaju jednu od mera koja se
koristi za kontrolisano prihvatanje oticaja sa
saobraćajnica. Svojim retenzionim prostorom ovi
objekti obezbeĊuju smanjenje maksimalne vrednosti
oticaja, kao i poboljšanje njegovog kvaliteta filtracijom
kroz filtarski sloj u okolno zemljište. Da bi se
obezbedila efikasnost i održivo funkcionisanje
infiltracionog polja, prilikom projektovanja se pažljivo
moraju: 1) odabrati merodavne raĉunske kiše i 2)
razmotriti svi aspekti od znaĉaja za infiltraciju.
Inženjerima u Srbiji koji se bave projektovanjem
odvodnjavanja saobraćajnica na raspolaganju je
„Priruĉnik za projektovanje puteva u Republici Srbiji“,
kojim objekti ovog tipa nisu obuhvaćeni. U stranoj
literaturi se mogu naći osnovne smernice i preporuke za
dimenzionisanje, ali takoĊe bez detaljnijeg opisa
postupka dimenzionisanja i proraĉuna infiltracije. U
ovom radu je prikazana sveobuhvatna metodologija za
proraĉun i analizu infiltracionih polja namenjenih za
prihvatanje oticaja sa saobraćajnica. Osnovna prednost
predložene metodologije je objedinjavanje svih
relevantnih hidroloških i hidrauliĉkih analiza, ĉime se
nadomešćuju nedostaci prisutni u trenutno dostupnim
pravilnicima i smernicama za projektovanje.
Metodologija je primenjena na realnom primeru
infiltracionog polja namenjenog za prihvatanje oticaja
sa deonice trase železnice Novi Sad – Subotica.
Implementacija metodologije u razvijeni softverski alat
omogućava korisniku da na efikasan naĉin vrši analize
za razliĉite ulazne podatke i ispita razliĉita varijantna
rešenja., Stormwater infiltration fields are one of sustainable
measures used for the control of road runoff. Field’s
retention space ensures a reduction in peak runoff
values, while runoff quality is also improved as a result
of infiltration to the surrounding soil. To ensure the
efficiency and sustainable functioning of the infiltration
field, design procedure should carefully address the
following: 1) selection of the proper design storm and 2)
all aspects relevant for soil infiltration. Document
"Guidelines for the road design in the Republic of
Serbia" is available to engineers dealing with the road
drainage design in Serbia. However, it does not
recognize this type of engineering objects. Basic
guidelines and recommendations for the design can be
found in literature, but also without a detailed
description of the design procedure and infiltration
calculation. This paper presents a comprehensive
methodology for the calculation and operational
analysis of infiltration fields for road runoff. Presented
methodology encompasses all relevant hydrological and
hydraulic analyses in detail, which overcomes the
shortcomings present in currently available regulations
and design guidelines. The methodology was applied on
a real example of an infiltration field intended for runoff
control from the section of the railway Novi Sad -
Subotica. Methodology is implemented in a software
tool, allowing the user to efficiently perform analyses
for different input data and investigate alternative
designs.",
publisher = "Srpsko društvo za odvodnjavanje i navodnjavanje, Akademija inženjerskih nauka Srbije",
journal = "Vodoprivreda",
title = "Metoologija za proračun i analizu infiltracionih polja za prihvatanje oticaja sa saobraćajnica",
pages = "224-213",
number = "319-320",
volume = "54",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2935"
}

Vasilić, Ž., Stanić, F.,& Ranđelović, A.. (2022). Metoologija za proračun i analizu infiltracionih polja za prihvatanje oticaja sa saobraćajnica. in Vodoprivreda
Srpsko društvo za odvodnjavanje i navodnjavanje., 54(319-320), 213-224.
https://hdl.handle.net/21.15107/rcub_grafar_2935

Vasilić Ž, Stanić F, Ranđelović A. Metoologija za proračun i analizu infiltracionih polja za prihvatanje oticaja sa saobraćajnica. in Vodoprivreda. 2022;54(319-320):213-224.
https://hdl.handle.net/21.15107/rcub_grafar_2935 .

Vasilić, Željko, Stanić, Filip, Ranđelović, Anja, "Metoologija za proračun i analizu infiltracionih polja za prihvatanje oticaja sa saobraćajnica" in Vodoprivreda, 54, no. 319-320 (2022):213-224,
https://hdl.handle.net/21.15107/rcub_grafar_2935 .

TY  - JOUR
AU  - Sretenović, Žarko
AU  - Govedarica, Ognjen
AU  - Vasilić, Željko
AU  - Popović, Miodrag
AU  - Đukić, Aleksandar
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2484
PB  - Riga Technical University
T2  - 12th Eastern European Young Water Professionals Conference, Water Research and Innovations in Digital Era
T1  - Variable Speed Pump Modeling Using PID Control in EPA SWMM
EP  - 237
SP  - 236
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2484
ER  - 

@article{
author = "Sretenović, Žarko and Govedarica, Ognjen and Vasilić, Željko and Popović, Miodrag and Đukić, Aleksandar",
year = "2021",
publisher = "Riga Technical University",
journal = "12th Eastern European Young Water Professionals Conference, Water Research and Innovations in Digital Era",
title = "Variable Speed Pump Modeling Using PID Control in EPA SWMM",
pages = "237-236",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2484"
}

Sretenović, Ž., Govedarica, O., Vasilić, Ž., Popović, M.,& Đukić, A.. (2021). Variable Speed Pump Modeling Using PID Control in EPA SWMM. in 12th Eastern European Young Water Professionals Conference, Water Research and Innovations in Digital Era
Riga Technical University., 236-237.
https://hdl.handle.net/21.15107/rcub_grafar_2484

Sretenović Ž, Govedarica O, Vasilić Ž, Popović M, Đukić A. Variable Speed Pump Modeling Using PID Control in EPA SWMM. in 12th Eastern European Young Water Professionals Conference, Water Research and Innovations in Digital Era. 2021;:236-237.
https://hdl.handle.net/21.15107/rcub_grafar_2484 .

Sretenović, Žarko, Govedarica, Ognjen, Vasilić, Željko, Popović, Miodrag, Đukić, Aleksandar, "Variable Speed Pump Modeling Using PID Control in EPA SWMM" in 12th Eastern European Young Water Professionals Conference, Water Research and Innovations in Digital Era (2021):236-237,
https://hdl.handle.net/21.15107/rcub_grafar_2484 .

TY  - JOUR
AU  - Vasilić, Željko
AU  - Ivetić, Damjan
AU  - Stanić, Miloš
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3211
AB  - U ovom radu je predstavljena metodologija za podršku odlučivanju u postupku sektorizacije vodovodne distributivne mreže na osnovne zone bilansiranja. Obzirom da sektorizacija mreže nije jednoznačna, razvijena metodologija je implementirana u hidroinformacioni alat koji omogućava sagledavanje većeg skupa mogućih rešenja sektorizacije. Metodologija za sektorizaciju je 
zasnovana na primeni novog indeksa uniformnosti mreže (eng. Uniformity Index) koji omogućava 
identifikaciju klastera u mreži ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijenog hidroinformacionog alata je obezbeđena kroz implementaciju sledećih celina: 1) algoritma za automatsku sektorizaciju mreže na klastere, 2) efikasnog modela za hidrauličke simulacije i 3) višekriterijumske optimizacije. Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Na ovaj način se donosiocima odluka koji upravljaju komunalnim preduzećima omogućava olakšano planiranje mera i potencijalnih intervencija na mreži u cilju smanjenja gubitaka u sistemu, kao i sagledavanje efekata tih mera. Dodatno je omogućeno objedinjenje osnovnih kriterijuma sektorizacije (veličina zone) sa lokalnim kriterijumima (inženjerskim i hidrauličkim) karakterističnim za predmetnu vodovodnu mrežu koja se analizira. Primena opisane metodologije je ilustrovana na konkretnom primeru vodovodne distributivne mreže naseljenog mesta u Holandiji.
AB  - This paper presents decision support methodology for sectorization of water distribution 
networks (WDNs) into district meter areas (DMAs). Considering that complexity of the real life WDNs
results in many different alternatives in which network sectorization into DMAs can be done, presented 
methodology is implemented into comprehensive hydroinformatics tool which allow end-user to 
investigate broad set of feasible sectorization solutions. Sectorization algorithm used in this researh 
utilizes newly developed Uniformity Index which drives the sectorization process and identifies clusters 
in the network with uniform demand. The efficiency, usability and succesufull application of the 
developed hydroinformatics tool is ensured through the implementation of the following: 1) algorithm 
for automatic sectorization of the network into clusters, 2) efficient model for hydraulic simulations and 
3) multicriteria optimization. Least investment for field implementation and maintaining the same level 
of WDN’s operational efficiency are adopted as main criteria for solution evaluation and selection of 
preferable solution. This enables decision-makers easier planning of measures and potential 
interventions in the water distribution network in order to reduce losses in the system, as well as to
assess the potential impacts of those measures. Additionaly, it is possible to combine general 
sectorization criteria (DMA size) with local criteria (engineering and hydraulic), specific to the water 
distribution network being analyzed. Presented methodology is applied on a real-sized WDN of a small 
area in Netherlands.
PB  - Udruženje za tehnologijiu vode i sanitarno inženjerstvo
T2  - Voda i sanitarna tehnika
T1  - Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja
T1  - Decision support methodology for sectorization of water distribution networks into district meter areas
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3211
ER  - 

@article{
author = "Vasilić, Željko and Ivetić, Damjan and Stanić, Miloš",
year = "2021",
abstract = "U ovom radu je predstavljena metodologija za podršku odlučivanju u postupku sektorizacije vodovodne distributivne mreže na osnovne zone bilansiranja. Obzirom da sektorizacija mreže nije jednoznačna, razvijena metodologija je implementirana u hidroinformacioni alat koji omogućava sagledavanje većeg skupa mogućih rešenja sektorizacije. Metodologija za sektorizaciju je 
zasnovana na primeni novog indeksa uniformnosti mreže (eng. Uniformity Index) koji omogućava 
identifikaciju klastera u mreži ujednačenih po potrošnji. Efikasnost, upotrebljivost i primena razvijenog hidroinformacionog alata je obezbeđena kroz implementaciju sledećih celina: 1) algoritma za automatsku sektorizaciju mreže na klastere, 2) efikasnog modela za hidrauličke simulacije i 3) višekriterijumske optimizacije. Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Na ovaj način se donosiocima odluka koji upravljaju komunalnim preduzećima omogućava olakšano planiranje mera i potencijalnih intervencija na mreži u cilju smanjenja gubitaka u sistemu, kao i sagledavanje efekata tih mera. Dodatno je omogućeno objedinjenje osnovnih kriterijuma sektorizacije (veličina zone) sa lokalnim kriterijumima (inženjerskim i hidrauličkim) karakterističnim za predmetnu vodovodnu mrežu koja se analizira. Primena opisane metodologije je ilustrovana na konkretnom primeru vodovodne distributivne mreže naseljenog mesta u Holandiji., This paper presents decision support methodology for sectorization of water distribution 
networks (WDNs) into district meter areas (DMAs). Considering that complexity of the real life WDNs
results in many different alternatives in which network sectorization into DMAs can be done, presented 
methodology is implemented into comprehensive hydroinformatics tool which allow end-user to 
investigate broad set of feasible sectorization solutions. Sectorization algorithm used in this researh 
utilizes newly developed Uniformity Index which drives the sectorization process and identifies clusters 
in the network with uniform demand. The efficiency, usability and succesufull application of the 
developed hydroinformatics tool is ensured through the implementation of the following: 1) algorithm 
for automatic sectorization of the network into clusters, 2) efficient model for hydraulic simulations and 
3) multicriteria optimization. Least investment for field implementation and maintaining the same level 
of WDN’s operational efficiency are adopted as main criteria for solution evaluation and selection of 
preferable solution. This enables decision-makers easier planning of measures and potential 
interventions in the water distribution network in order to reduce losses in the system, as well as to
assess the potential impacts of those measures. Additionaly, it is possible to combine general 
sectorization criteria (DMA size) with local criteria (engineering and hydraulic), specific to the water 
distribution network being analyzed. Presented methodology is applied on a real-sized WDN of a small 
area in Netherlands.",
publisher = "Udruženje za tehnologijiu vode i sanitarno inženjerstvo",
journal = "Voda i sanitarna tehnika",
title = "Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja, Decision support methodology for sectorization of water distribution networks into district meter areas",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3211"
}

Vasilić, Ž., Ivetić, D.,& Stanić, M.. (2021). Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja. in Voda i sanitarna tehnika
Udruženje za tehnologijiu vode i sanitarno inženjerstvo..
https://hdl.handle.net/21.15107/rcub_grafar_3211

Vasilić Ž, Ivetić D, Stanić M. Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja. in Voda i sanitarna tehnika. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_3211 .

Vasilić, Željko, Ivetić, Damjan, Stanić, Miloš, "Metodologija za podršku odlučivanju pri sektorizaciji vodovodnih mreža na osnovne zone bilansiranja" in Voda i sanitarna tehnika (2021),
https://hdl.handle.net/21.15107/rcub_grafar_3211 .

TY  - JOUR
AU  - Vasilić, Željko
AU  - Stanić, Miloš
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2499
AB  - Za potrebe modeliranja mreža pod pritiskom u praksi se
najĉešće koristi EPANET softver, globalno priznat kao
pouzdan i robustan. EPANET koristi formulaciju
osnovnih jednaĉina koje opisuju teĉenje u mrežama pod
pritiskom poznatu kao metoda ĉvorova, za ĉije
rešavanje se primenjuje metoda globalnog gradijenta
(Global Gradient Algorithm – GGA). Alternativna
formulacija metodi ĉvorova jeste formulacija metode
prstenova (ΔQ metoda). Osnovna prednost formulacije
metode prstenova je znaĉajno manji broj nepoznatih
veliĉina, što proizilazi iz ĉinjenice da realne mreže
imaju znatno manje prstenova nego ĉvorova. Osnovni
nedostatak je neophodna identifikacija prstenova u
mreži koja nije jednoznaĉna. U ovom radu je
predstavljena nova metoda za hidrauliĉki proraĉun
mreža pod pritiskom (TRIBAL–ΔQ), zasnovana na
novom algoritmu za brzu identifikaciju prstenova u
mreži (TRIBAL) i efikasnoj implementaciji ΔQ metode
za rešavanje osnovnih jednaĉina sistema. Cilj
predstavljene metode je da iskoristi oĉigledne prednosti
formulacije metode prstenova i prevaziĊe poteškoće
procesa identifikacije prstenova postojećih metoda
baziranih na istoj formulaciji. TRIBAL–ΔQ metoda je
testirana na ĉetiri primera realnih mreža razliĉite
topologije i složenosti. Poseban akcenat je dat poreĊenju
brzine proraĉuna TRIBAL–ΔQ metode sa GGA
metodom implementiranom u EPANET. Rezultati
ilustruju da, iako zahteva veći broj iteracija za
konvergenciju, nova TRIBAL–ΔQ metoda ostvaruje
istu preciznost proraĉuna uz bolju numeriĉku stabilnost
sa znaĉajnom uštedom raĉunarskog vremena.
AB  - The most popular software for hydraulic analysis of
pressurized water distribution networks nowadays is
EPANET, globally recognized as reliable and robust.
EPANET uses node-based formulation of governing
equations and employs Global Gradiet Algorithm
(GGA) to solve hydraulics of the network. Alternative
formulation to the node-based one is the loop-flow
formulation of governing equations, also known as the
ΔQ method. Main advantage of the loop-flow
formulation is significantly lower number of unknowns
to solve for, coming from the fact that real-sized
networks typically have far less loops than nodes. Main
drawback is the need to identify loops in the network, a
task with multiple alternative solutions and proven to be
cumbersome. This paper presents new TRIBAL-ΔQ
method for hydraulic simulation in pressurized water
distribution networks, based on the new algorithm for
identification of loops in the network (TRIBAL) and
more efficient implementation of loop-flow method for
hydraulic simulation (ΔQ). Main goal of presented
method is to exploit obvious advantages of the loopflow method and overcome main drawbacks identified
in similar researches. TRIBAL-ΔQ method is tested on
four networks varying in topology and complexity.
Focus of research is on a comparison of computational
efficiency of TRIBAL-ΔQ based solver with GGA
based solver implemented in EPANET. Results indicate
that TRIBAL-ΔQ based solver is significantly
computationally faster than GGA based one, equally
accurate and has slightly better numerical stability
PB  - Srpsko društvo za odvodnjavanje i navodnjavanje
T2  - Vodoprivreda
T1  - Hidraulički proračun mreža pod pritiskom primenom TRIBAL-∆Q metode
EP  - 118
IS  - 311-312
SP  - 107
VL  - 53
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2499
ER  - 

@article{
author = "Vasilić, Željko and Stanić, Miloš",
year = "2021",
abstract = "Za potrebe modeliranja mreža pod pritiskom u praksi se
najĉešće koristi EPANET softver, globalno priznat kao
pouzdan i robustan. EPANET koristi formulaciju
osnovnih jednaĉina koje opisuju teĉenje u mrežama pod
pritiskom poznatu kao metoda ĉvorova, za ĉije
rešavanje se primenjuje metoda globalnog gradijenta
(Global Gradient Algorithm – GGA). Alternativna
formulacija metodi ĉvorova jeste formulacija metode
prstenova (ΔQ metoda). Osnovna prednost formulacije
metode prstenova je znaĉajno manji broj nepoznatih
veliĉina, što proizilazi iz ĉinjenice da realne mreže
imaju znatno manje prstenova nego ĉvorova. Osnovni
nedostatak je neophodna identifikacija prstenova u
mreži koja nije jednoznaĉna. U ovom radu je
predstavljena nova metoda za hidrauliĉki proraĉun
mreža pod pritiskom (TRIBAL–ΔQ), zasnovana na
novom algoritmu za brzu identifikaciju prstenova u
mreži (TRIBAL) i efikasnoj implementaciji ΔQ metode
za rešavanje osnovnih jednaĉina sistema. Cilj
predstavljene metode je da iskoristi oĉigledne prednosti
formulacije metode prstenova i prevaziĊe poteškoće
procesa identifikacije prstenova postojećih metoda
baziranih na istoj formulaciji. TRIBAL–ΔQ metoda je
testirana na ĉetiri primera realnih mreža razliĉite
topologije i složenosti. Poseban akcenat je dat poreĊenju
brzine proraĉuna TRIBAL–ΔQ metode sa GGA
metodom implementiranom u EPANET. Rezultati
ilustruju da, iako zahteva veći broj iteracija za
konvergenciju, nova TRIBAL–ΔQ metoda ostvaruje
istu preciznost proraĉuna uz bolju numeriĉku stabilnost
sa znaĉajnom uštedom raĉunarskog vremena., The most popular software for hydraulic analysis of
pressurized water distribution networks nowadays is
EPANET, globally recognized as reliable and robust.
EPANET uses node-based formulation of governing
equations and employs Global Gradiet Algorithm
(GGA) to solve hydraulics of the network. Alternative
formulation to the node-based one is the loop-flow
formulation of governing equations, also known as the
ΔQ method. Main advantage of the loop-flow
formulation is significantly lower number of unknowns
to solve for, coming from the fact that real-sized
networks typically have far less loops than nodes. Main
drawback is the need to identify loops in the network, a
task with multiple alternative solutions and proven to be
cumbersome. This paper presents new TRIBAL-ΔQ
method for hydraulic simulation in pressurized water
distribution networks, based on the new algorithm for
identification of loops in the network (TRIBAL) and
more efficient implementation of loop-flow method for
hydraulic simulation (ΔQ). Main goal of presented
method is to exploit obvious advantages of the loopflow method and overcome main drawbacks identified
in similar researches. TRIBAL-ΔQ method is tested on
four networks varying in topology and complexity.
Focus of research is on a comparison of computational
efficiency of TRIBAL-ΔQ based solver with GGA
based solver implemented in EPANET. Results indicate
that TRIBAL-ΔQ based solver is significantly
computationally faster than GGA based one, equally
accurate and has slightly better numerical stability",
publisher = "Srpsko društvo za odvodnjavanje i navodnjavanje",
journal = "Vodoprivreda",
title = "Hidraulički proračun mreža pod pritiskom primenom TRIBAL-∆Q metode",
pages = "118-107",
number = "311-312",
volume = "53",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2499"
}

Vasilić, Ž.,& Stanić, M.. (2021). Hidraulički proračun mreža pod pritiskom primenom TRIBAL-∆Q metode. in Vodoprivreda
Srpsko društvo za odvodnjavanje i navodnjavanje., 53(311-312), 107-118.
https://hdl.handle.net/21.15107/rcub_grafar_2499

Vasilić Ž, Stanić M. Hidraulički proračun mreža pod pritiskom primenom TRIBAL-∆Q metode. in Vodoprivreda. 2021;53(311-312):107-118.
https://hdl.handle.net/21.15107/rcub_grafar_2499 .

Vasilić, Željko, Stanić, Miloš, "Hidraulički proračun mreža pod pritiskom primenom TRIBAL-∆Q metode" in Vodoprivreda, 53, no. 311-312 (2021):107-118,
https://hdl.handle.net/21.15107/rcub_grafar_2499 .

TY  - CONF
AU  - Vasilić, Željko
AU  - Ivetić, Damjan
AU  - Stanić, Miloš
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2503
AB  - Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja nije jednoznačan zbog čega je identifikacija optimalnog rasporeda izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. U ovom radu je prikazana metodologija za sektorizaciju zasnovana na primeni novog indeksa uniformnosti mreže (eng. Uniformity Index) koja omogućava identifikaciju klastera u mreži ujednačenih po potrošnji. Optimizacioni algoritam, podržan inženjerskom logikom, je korišćen za određivanje položaja kontrolnih uređaja (zatvarača i merača protoka) na granicama prethodno identifikovanih klustera, čime se uspostavljaju zone bilansiranja.  Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Rezultati testiranja metodologije na realnom primeru vodovodne mreže, sa primenom lokalnih kriterijuma, potvrđuju da može biti od značajne koristi u inženjerskoj praksi u procesu sektorizacije.
AB  - Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is a proven measure for proactive leakage and pressure control. Sectorization of WDN into an optimal system of DMAs is a hard task to achieve, especially for the existing and continuously operating WDN. Beside general criteria (e.g. DMA size, network length), sectorisation process should be driven by the case-specific criteria such as required number of feeds, fire flow regulations etc. This paper presents sectorization algorithm that utilizes newly developed uniformity index which drives the sectorization process and identifies clusters in the network with uniform demand. Engineering heuristic is coupled with optimization algorithm in order to search the broader range of feasible solutions and identify (near)optimal positions of flow-meters an isolation valves on clusters’ boundary edges, converting them to DMAs. Least investment for field implementation and maintaining the same level of WDN’s operational efficiency are adopted as main criteria for solution evaluation and selection of preferable solution. Testing algorithm on a part of real-life WDN, subjected to the specific local design criteria, proved it can be a valuable decision support tool for sectorization process.
PB  - Građevinski fakultet Univerziteta u Beogradu
C3  - 19. Naučno savetovanje SDHI i SDH
T1  - Višekriterijumska analiza sektorizacije vodovodne mreže
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2503
ER  - 

@conference{
author = "Vasilić, Željko and Ivetić, Damjan and Stanić, Miloš",
year = "2021",
abstract = "Sektorizacija odnosno podela vodovodne mreže na osnovne zone bilansiranja (eng. District Meter Areas – DMAs) predstavlja najisplativiju i opšte prihvaćenu strategiju za kontrolu vodnog bilansa, pritisaka i smanjenje gubitaka u mreži. Izbor zona bilansiranja nije jednoznačan zbog čega je identifikacija optimalnog rasporeda izuzetno zahtevan zadatak, naročito u slučaju postojećih distributivnih sistema. Pored osnovnih kriterijuma (npr. veličina zona i dužina mreže) postupak sektorizacije treba da obuhvati i dodatne „lokalne“ kriterijume specifične za mrežu koja se razmatra kao što su minimalni broj dovoda, zadovoljenje protivpožarnog opterećenja itd. U ovom radu je prikazana metodologija za sektorizaciju zasnovana na primeni novog indeksa uniformnosti mreže (eng. Uniformity Index) koja omogućava identifikaciju klastera u mreži ujednačenih po potrošnji. Optimizacioni algoritam, podržan inženjerskom logikom, je korišćen za određivanje položaja kontrolnih uređaja (zatvarača i merača protoka) na granicama prethodno identifikovanih klustera, čime se uspostavljaju zone bilansiranja.  Osnovni kriterijumi za vrednovanje i izbor optimalnog rešenja su minimalna ulaganja u neophodne intervencije u mreži i očuvanje pouzdanosti sistema. Rezultati testiranja metodologije na realnom primeru vodovodne mreže, sa primenom lokalnih kriterijuma, potvrđuju da može biti od značajne koristi u inženjerskoj praksi u procesu sektorizacije., Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is a proven measure for proactive leakage and pressure control. Sectorization of WDN into an optimal system of DMAs is a hard task to achieve, especially for the existing and continuously operating WDN. Beside general criteria (e.g. DMA size, network length), sectorisation process should be driven by the case-specific criteria such as required number of feeds, fire flow regulations etc. This paper presents sectorization algorithm that utilizes newly developed uniformity index which drives the sectorization process and identifies clusters in the network with uniform demand. Engineering heuristic is coupled with optimization algorithm in order to search the broader range of feasible solutions and identify (near)optimal positions of flow-meters an isolation valves on clusters’ boundary edges, converting them to DMAs. Least investment for field implementation and maintaining the same level of WDN’s operational efficiency are adopted as main criteria for solution evaluation and selection of preferable solution. Testing algorithm on a part of real-life WDN, subjected to the specific local design criteria, proved it can be a valuable decision support tool for sectorization process.",
publisher = "Građevinski fakultet Univerziteta u Beogradu",
journal = "19. Naučno savetovanje SDHI i SDH",
title = "Višekriterijumska analiza sektorizacije vodovodne mreže",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2503"
}

Vasilić, Ž., Ivetić, D.,& Stanić, M.. (2021). Višekriterijumska analiza sektorizacije vodovodne mreže. in 19. Naučno savetovanje SDHI i SDH
Građevinski fakultet Univerziteta u Beogradu..
https://hdl.handle.net/21.15107/rcub_grafar_2503

Vasilić Ž, Ivetić D, Stanić M. Višekriterijumska analiza sektorizacije vodovodne mreže. in 19. Naučno savetovanje SDHI i SDH. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2503 .

Vasilić, Željko, Ivetić, Damjan, Stanić, Miloš, "Višekriterijumska analiza sektorizacije vodovodne mreže" in 19. Naučno savetovanje SDHI i SDH (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2503 .

TY  - CONF
AU  - Ivetić, Damjan
AU  - Vasilić, Željko
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2511
AB  - Ispiranje vodovodne mreže se sprovodi nakon što se za određeni deo mreže, ili zone za ispiranje, ustanovi da je voda izložena visokom riziku od zamućenja (promene boje). Uobičajeno se planiranje ispiranja sprovodi ručno i u većini slučajeva predstavlja dugotrajan postupak. Za definisanje plana ispiranja određene zone mreže, neophodno je napraviti skup uzastopnih poteznih ispiranja kojim se ceo deo mreže ispira. U svakom poteznom ispiranju se ispira deo sekundarne (i tercijarne) mreže. Za svako potezno ispiranje potrebno je uz pomoć niza manipulacija zatvaračima na mreži, usmeriti tok vode od fronta čiste vode ka ispustnom hidrantu. Frontovi čiste vode predstavljaju granice dela mreže koji je okarakterisan kao „čist“. Mogu se definisati kroz merenje mutnoće na licu mesta, ili nakon ispiranja konkretnog čvora (odnosno dela mreže u kom se nalazi čvor). Tokom ispiranja cevi, tok vode koji se koristi za ispiranje, mora da ispuni određen skup hidrauličkih kriterijuma, kako bi se promena mutnoće vode, ili zagađenje, adekvatno otklonilo. Sa stanovišta nadležnog komunalnog preduzeća, plan ispiranja mreže treba da bude ekonomičan u pogledu minimalnog utroška vremena i resursa (npr pijaće vode) za njegovu implementaciju. U ovom radu, mogućnost automatizacije i optimizacije planiranja ispiranja, uz pomoć novo razvijenog FPA (eng. Flashing Planning Algorithm) algoritma je testirana i analizirana. FPA algoritam je napravljen kako bi na adekvatan način odgovorio na gore navedene zahteve.
AB  - Flushing of the drinking water distribution systems is conducted after a certain part of the water distribution network, or the flushing zone, is identified to be a subject to a high risk of discoloration. Typically, flushing planning is performed manually and is usually time-consuming. To derive a flushing plan for a flushing zone, a set of sequential flushing operations needs to be defined. In each flushing operation the parts of the secondary and tertiary network, meeting multiple criterion, will be flushed. For each flushing operation a set of valves manipulations is needed to converge the water flow, from a clearwater front, through the pipes that are set to be flushed, and out of the system via output hydrant. Clearwater fronts are network nodes on the boundary of the network which is deemed as “clean”. They can be defined through in-situ turbidity measurements, or after the actual flushing of the node (part of the network containing the node). To perform the pipe flushing, the water flow used to flush a pipe, needs to meet a set of hydraulic criteria, in order to allow for the discoloration to be appropriately addressed and removed. From the water utility perspective, the flushing plan should be economical in terms of the minimal expenditure of the time and resources (e.g. drinking water) for the implementation. Here, a possibility for the automatization of the flushing planning with the newly developed FPA (Flushing Planning Algorithm) algorithm, was tested and analyzed. The FPA algorithm was designed to address the flushing planning by taking into the account all the above-mentioned criteria.
PB  - 19. Savetovanje SDHI i SDH, Niš, Srbija, 2021
C3  - 19. Savetovanje SDHI i SDH, Niš, Srbija, 2021
T1  - Optimizacija postupka ispiranja vodovodne mreže
T1  - Optimization of the water distribution network flushing
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2511
ER  - 

@conference{
author = "Ivetić, Damjan and Vasilić, Željko",
year = "2021",
abstract = "Ispiranje vodovodne mreže se sprovodi nakon što se za određeni deo mreže, ili zone za ispiranje, ustanovi da je voda izložena visokom riziku od zamućenja (promene boje). Uobičajeno se planiranje ispiranja sprovodi ručno i u većini slučajeva predstavlja dugotrajan postupak. Za definisanje plana ispiranja određene zone mreže, neophodno je napraviti skup uzastopnih poteznih ispiranja kojim se ceo deo mreže ispira. U svakom poteznom ispiranju se ispira deo sekundarne (i tercijarne) mreže. Za svako potezno ispiranje potrebno je uz pomoć niza manipulacija zatvaračima na mreži, usmeriti tok vode od fronta čiste vode ka ispustnom hidrantu. Frontovi čiste vode predstavljaju granice dela mreže koji je okarakterisan kao „čist“. Mogu se definisati kroz merenje mutnoće na licu mesta, ili nakon ispiranja konkretnog čvora (odnosno dela mreže u kom se nalazi čvor). Tokom ispiranja cevi, tok vode koji se koristi za ispiranje, mora da ispuni određen skup hidrauličkih kriterijuma, kako bi se promena mutnoće vode, ili zagađenje, adekvatno otklonilo. Sa stanovišta nadležnog komunalnog preduzeća, plan ispiranja mreže treba da bude ekonomičan u pogledu minimalnog utroška vremena i resursa (npr pijaće vode) za njegovu implementaciju. U ovom radu, mogućnost automatizacije i optimizacije planiranja ispiranja, uz pomoć novo razvijenog FPA (eng. Flashing Planning Algorithm) algoritma je testirana i analizirana. FPA algoritam je napravljen kako bi na adekvatan način odgovorio na gore navedene zahteve., Flushing of the drinking water distribution systems is conducted after a certain part of the water distribution network, or the flushing zone, is identified to be a subject to a high risk of discoloration. Typically, flushing planning is performed manually and is usually time-consuming. To derive a flushing plan for a flushing zone, a set of sequential flushing operations needs to be defined. In each flushing operation the parts of the secondary and tertiary network, meeting multiple criterion, will be flushed. For each flushing operation a set of valves manipulations is needed to converge the water flow, from a clearwater front, through the pipes that are set to be flushed, and out of the system via output hydrant. Clearwater fronts are network nodes on the boundary of the network which is deemed as “clean”. They can be defined through in-situ turbidity measurements, or after the actual flushing of the node (part of the network containing the node). To perform the pipe flushing, the water flow used to flush a pipe, needs to meet a set of hydraulic criteria, in order to allow for the discoloration to be appropriately addressed and removed. From the water utility perspective, the flushing plan should be economical in terms of the minimal expenditure of the time and resources (e.g. drinking water) for the implementation. Here, a possibility for the automatization of the flushing planning with the newly developed FPA (Flushing Planning Algorithm) algorithm, was tested and analyzed. The FPA algorithm was designed to address the flushing planning by taking into the account all the above-mentioned criteria.",
publisher = "19. Savetovanje SDHI i SDH, Niš, Srbija, 2021",
journal = "19. Savetovanje SDHI i SDH, Niš, Srbija, 2021",
title = "Optimizacija postupka ispiranja vodovodne mreže, Optimization of the water distribution network flushing",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2511"
}

Ivetić, D.,& Vasilić, Ž.. (2021). Optimizacija postupka ispiranja vodovodne mreže. in 19. Savetovanje SDHI i SDH, Niš, Srbija, 2021
19. Savetovanje SDHI i SDH, Niš, Srbija, 2021..
https://hdl.handle.net/21.15107/rcub_grafar_2511

Ivetić D, Vasilić Ž. Optimizacija postupka ispiranja vodovodne mreže. in 19. Savetovanje SDHI i SDH, Niš, Srbija, 2021. 2021;.
https://hdl.handle.net/21.15107/rcub_grafar_2511 .

Ivetić, Damjan, Vasilić, Željko, "Optimizacija postupka ispiranja vodovodne mreže" in 19. Savetovanje SDHI i SDH, Niš, Srbija, 2021 (2021),
https://hdl.handle.net/21.15107/rcub_grafar_2511 .

TY  - JOUR
AU  - Vasilić, Željko
AU  - Stanić, Miloš
AU  - Kapelan, Zoran
AU  - Prodanović, Dušan
AU  - Babić, Branislav
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2103
AB  - Sectorization of a water distribution network (WDN) into district metered areas (DMAs) is a proven solution for proactive leakage control. Traditionally, WDN sectorization is conducted by local experts using a trial-and-error approach, often resulting in the identification of arbitrary solutions. Some recently published methods try to improve WDN sectorization by automating the process,
especially by using optimization. Various sectorization criteria, constraints, and limitations are introduced, which often fail to consider the issues faced by poorly managed WDNs such as limited funds and shortage of water balance data. These methods also have poor computational efficiency imposed by optimization methods used. This paper presents a new distribution network sectorization method (DeNSE), that overcomes these deficiencies. This method is based on a heuristic procedure in which WDN sectorization is driven by efficient tracking of water balance data and determining the lowest cost investment needed to maintain the same level of operational performance. The above-mentioned set of criteria is particularly well suited for initial sectorization of WDNs when major uncertainties in water balance data often lead to poor management decisions. The DeNSE method is validated and benchmarked against other sectorization methodologies in a case study of a large, real-world WDN. The results show that DeNSE can identify sound, realistic sectorization solutions that are in some respects better than corresponding solutions reported in the literature. DeNSE also enables high computational efficiency, ensuring its applicability to real-world WDNs.
PB  - Reston, VA (USA): ASCE - American Society of Civil Engineers
T2  - Journal of Water Resources Planning and Management
T1  - Uniformity and Heuristics-Based DeNSE Method for Sectorization of Water Distribution Networks
IS  - 3
VL  - 146
DO  - 10.1061/(ASCE)WR.1943-5452.0001163
ER  - 

@article{
author = "Vasilić, Željko and Stanić, Miloš and Kapelan, Zoran and Prodanović, Dušan and Babić, Branislav",
year = "2020",
abstract = "Sectorization of a water distribution network (WDN) into district metered areas (DMAs) is a proven solution for proactive leakage control. Traditionally, WDN sectorization is conducted by local experts using a trial-and-error approach, often resulting in the identification of arbitrary solutions. Some recently published methods try to improve WDN sectorization by automating the process,
especially by using optimization. Various sectorization criteria, constraints, and limitations are introduced, which often fail to consider the issues faced by poorly managed WDNs such as limited funds and shortage of water balance data. These methods also have poor computational efficiency imposed by optimization methods used. This paper presents a new distribution network sectorization method (DeNSE), that overcomes these deficiencies. This method is based on a heuristic procedure in which WDN sectorization is driven by efficient tracking of water balance data and determining the lowest cost investment needed to maintain the same level of operational performance. The above-mentioned set of criteria is particularly well suited for initial sectorization of WDNs when major uncertainties in water balance data often lead to poor management decisions. The DeNSE method is validated and benchmarked against other sectorization methodologies in a case study of a large, real-world WDN. The results show that DeNSE can identify sound, realistic sectorization solutions that are in some respects better than corresponding solutions reported in the literature. DeNSE also enables high computational efficiency, ensuring its applicability to real-world WDNs.",
publisher = "Reston, VA (USA): ASCE - American Society of Civil Engineers",
journal = "Journal of Water Resources Planning and Management",
title = "Uniformity and Heuristics-Based DeNSE Method for Sectorization of Water Distribution Networks",
number = "3",
volume = "146",
doi = "10.1061/(ASCE)WR.1943-5452.0001163"
}

Vasilić, Ž., Stanić, M., Kapelan, Z., Prodanović, D.,& Babić, B.. (2020). Uniformity and Heuristics-Based DeNSE Method for Sectorization of Water Distribution Networks. in Journal of Water Resources Planning and Management
Reston, VA (USA): ASCE - American Society of Civil Engineers., 146(3).
https://doi.org/10.1061/(ASCE)WR.1943-5452.0001163

Vasilić Ž, Stanić M, Kapelan Z, Prodanović D, Babić B. Uniformity and Heuristics-Based DeNSE Method for Sectorization of Water Distribution Networks. in Journal of Water Resources Planning and Management. 2020;146(3).
doi:10.1061/(ASCE)WR.1943-5452.0001163 .

Vasilić, Željko, Stanić, Miloš, Kapelan, Zoran, Prodanović, Dušan, Babić, Branislav, "Uniformity and Heuristics-Based DeNSE Method for Sectorization of Water Distribution Networks" in Journal of Water Resources Planning and Management, 146, no. 3 (2020),
https://doi.org/10.1061/(ASCE)WR.1943-5452.0001163 . .

TY  - RPRT
AU  - Vasilić, Željko
AU  - Ivetić, Damjan
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2429
AB  - The subject of this report is presentation of abilities of sectorization algorithm to identify and create District Meter Areas (DMAs) within the water distribution network of the city of Amsterdam. 
District Meter Area (DMA) is a distinct hydraulic area of the WDN, separated from the rest of the supply system by isolation valves and one or more metered inlets and outlets (Burrows et al., 2000). Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is a proven measure for proactive leakage and pressure control. It is considered as the most cost-effective strategy for the control of real water losses. Setting up DMAs can be potentially useful even for water utilities that operate WDNs that do not suffer from high volumes of non-revenue water, such as Amsterdam city WDN operated by Waternet. For example, improved control of the contamination spreading can be considered as an additional significant benefit. Sectorization of WDN must be designed carefully, as required network interventions can endanger network’s reliability in terms of water supply and pressure distribution. 
Complexity of the real life WDN results in many different alternatives in which network sectorization can be done. Sectorization of WDN into an optimal system of DMAs is a hard task to achieve, especially for the existing and continuously operating WDNs. Every WDN is unique in its topology, characteristics and key sectorization objectives, so there is no common procedure for sectorization of WDN into DMAs, but rather a series of guidelines provided by the different water and other authorities (Butler, 2000; Farley, 2001; Morrison et al., 2007; WAA & WRC, 1985). Sectorization solutions are usually obtained by the “trial and error” technique conducted by a local expert, familiar with all the WDN specifics. Practical application of such approach is illustrated in Grayman et al. (2009) where two large case study networks are redesigned to implement typical DMA design and to allow additional control and isolation of the system in order to improve water security. Beside general criteria given by the aforementioned guidelines (e.g. DMA size, network length), sectorization process should be driven by the case-specific criteria such as required number of feeds, fire flow regulations etc. A more formal approach to sectorization problem, that will enable investigation of alternative sectorization solutions for large WDNs, adopting local design criteria is presented within this research program. 
Sectorization method employed in this analysis is named DeNSE (Distribution Network Sectorization). It is developed at the University of Belgrade, Faculty of Civil Engineering (Vasilic, 2018). DeNSE sectorization method is based on newly developed uniformity index metrics (Vasilic et al., 2020) which drives the sectorization process and identifies clusters in the network. Originally, DeNSE method relies on common engineering heuristics for placement of flow meters and valves to create DMAs. Although being able to produce a good set of feasible sectorization solutions, using only engineering heuristics limits the search space of potential solutions. In this research DeNSE methodology has been further improved to include an optimization procedure to ensure finding (sub)optimal sectorization solution within the broader specter of feasible sectorization solutions. Least investment for field implementation and maintaining the same level of WDN’s operational efficiency are adopted as sectorization’s main design criteria.  Additional local design criteria, specific for the Amsterdam water distribution network, have been included also. These upgrades made to the original DeNSE method proved to be significant, which is confirmed by testing it on two real-life case studies which are part of Amsterdam WDN. Reported results prove that developed method can be used as a decision support methodology valuable to practicing engineers commencing implementation of sectorization strategy in WDN.
PB  - The University of Sheffield.
T2  - The University of Sheffield. Report.
T1  - Report on application of sectorization method for creation of District Meter Areas (DMAs) within the water distribution network of the city of Amsterdam
DO  - 10.15131/shef.data.13415024.v1
ER  - 

@techreport{
author = "Vasilić, Željko and Ivetić, Damjan",
year = "2020",
abstract = "The subject of this report is presentation of abilities of sectorization algorithm to identify and create District Meter Areas (DMAs) within the water distribution network of the city of Amsterdam. 
District Meter Area (DMA) is a distinct hydraulic area of the WDN, separated from the rest of the supply system by isolation valves and one or more metered inlets and outlets (Burrows et al., 2000). Sectorization of Water Distribution Network (WDN) into District Meter Areas (DMAs) is a proven measure for proactive leakage and pressure control. It is considered as the most cost-effective strategy for the control of real water losses. Setting up DMAs can be potentially useful even for water utilities that operate WDNs that do not suffer from high volumes of non-revenue water, such as Amsterdam city WDN operated by Waternet. For example, improved control of the contamination spreading can be considered as an additional significant benefit. Sectorization of WDN must be designed carefully, as required network interventions can endanger network’s reliability in terms of water supply and pressure distribution. 
Complexity of the real life WDN results in many different alternatives in which network sectorization can be done. Sectorization of WDN into an optimal system of DMAs is a hard task to achieve, especially for the existing and continuously operating WDNs. Every WDN is unique in its topology, characteristics and key sectorization objectives, so there is no common procedure for sectorization of WDN into DMAs, but rather a series of guidelines provided by the different water and other authorities (Butler, 2000; Farley, 2001; Morrison et al., 2007; WAA & WRC, 1985). Sectorization solutions are usually obtained by the “trial and error” technique conducted by a local expert, familiar with all the WDN specifics. Practical application of such approach is illustrated in Grayman et al. (2009) where two large case study networks are redesigned to implement typical DMA design and to allow additional control and isolation of the system in order to improve water security. Beside general criteria given by the aforementioned guidelines (e.g. DMA size, network length), sectorization process should be driven by the case-specific criteria such as required number of feeds, fire flow regulations etc. A more formal approach to sectorization problem, that will enable investigation of alternative sectorization solutions for large WDNs, adopting local design criteria is presented within this research program. 
Sectorization method employed in this analysis is named DeNSE (Distribution Network Sectorization). It is developed at the University of Belgrade, Faculty of Civil Engineering (Vasilic, 2018). DeNSE sectorization method is based on newly developed uniformity index metrics (Vasilic et al., 2020) which drives the sectorization process and identifies clusters in the network. Originally, DeNSE method relies on common engineering heuristics for placement of flow meters and valves to create DMAs. Although being able to produce a good set of feasible sectorization solutions, using only engineering heuristics limits the search space of potential solutions. In this research DeNSE methodology has been further improved to include an optimization procedure to ensure finding (sub)optimal sectorization solution within the broader specter of feasible sectorization solutions. Least investment for field implementation and maintaining the same level of WDN’s operational efficiency are adopted as sectorization’s main design criteria.  Additional local design criteria, specific for the Amsterdam water distribution network, have been included also. These upgrades made to the original DeNSE method proved to be significant, which is confirmed by testing it on two real-life case studies which are part of Amsterdam WDN. Reported results prove that developed method can be used as a decision support methodology valuable to practicing engineers commencing implementation of sectorization strategy in WDN.",
publisher = "The University of Sheffield.",
journal = "The University of Sheffield. Report.",
title = "Report on application of sectorization method for creation of District Meter Areas (DMAs) within the water distribution network of the city of Amsterdam",
doi = "10.15131/shef.data.13415024.v1"
}

Vasilić, Ž.,& Ivetić, D.. (2020). Report on application of sectorization method for creation of District Meter Areas (DMAs) within the water distribution network of the city of Amsterdam. in The University of Sheffield. Report.
The University of Sheffield...
https://doi.org/10.15131/shef.data.13415024.v1

Vasilić Ž, Ivetić D. Report on application of sectorization method for creation of District Meter Areas (DMAs) within the water distribution network of the city of Amsterdam. in The University of Sheffield. Report.. 2020;.
doi:10.15131/shef.data.13415024.v1 .

Vasilić, Željko, Ivetić, Damjan, "Report on application of sectorization method for creation of District Meter Areas (DMAs) within the water distribution network of the city of Amsterdam" in The University of Sheffield. Report. (2020),
https://doi.org/10.15131/shef.data.13415024.v1 . .

TY  - RPRT
AU  - Ivetić, Damjan
AU  - Vasilić, Željko
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2515
AB  - This report describes the development of the Flushing Planning Algorithm (FPA) for deriving flushing plans to address discolouration in drinking water distribution systems. The application of the FPA to the water system serving Amsterdam, Netherlands (Waternet), is presented.
PB  - University of Sheffield
T2  - University of Sheffield
T1  - Report on Flushing Planning Algorithm testing on the flushing zones of the drinking water distribution system of the city of Amsterdam
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2515
ER  - 

@techreport{
author = "Ivetić, Damjan and Vasilić, Željko",
year = "2020",
abstract = "This report describes the development of the Flushing Planning Algorithm (FPA) for deriving flushing plans to address discolouration in drinking water distribution systems. The application of the FPA to the water system serving Amsterdam, Netherlands (Waternet), is presented.",
publisher = "University of Sheffield",
journal = "University of Sheffield",
title = "Report on Flushing Planning Algorithm testing on the flushing zones of the drinking water distribution system of the city of Amsterdam",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2515"
}

Ivetić, D.,& Vasilić, Ž.. (2020). Report on Flushing Planning Algorithm testing on the flushing zones of the drinking water distribution system of the city of Amsterdam. in University of Sheffield
University of Sheffield..
https://hdl.handle.net/21.15107/rcub_grafar_2515

Ivetić D, Vasilić Ž. Report on Flushing Planning Algorithm testing on the flushing zones of the drinking water distribution system of the city of Amsterdam. in University of Sheffield. 2020;.
https://hdl.handle.net/21.15107/rcub_grafar_2515 .

Ivetić, Damjan, Vasilić, Željko, "Report on Flushing Planning Algorithm testing on the flushing zones of the drinking water distribution system of the city of Amsterdam" in University of Sheffield (2020),
https://hdl.handle.net/21.15107/rcub_grafar_2515 .

TY  - JOUR
AU  - Todorović, Andrijana
AU  - Stanić, Miloš
AU  - Vasilić, Željko
AU  - Plavšić, Jasna
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1707
AB  - Hydrologic models are important for effective water resources management. They vary in complexity from parsimonious, spatially lumped, to physically-based, fully distributed models, which are generally expected to outperform the former. Wide applications of complex models are limited due to high data and computational demands. Therefore, a new approach based on well-balanced model complexity is needed to obtain reasonable simulation results with low data requirements. This paper presents a novel 3DNet-Catch hydrologic model, developed to represent key processes in sloped catchments under a temperate climate with modest data requirements. 3DNet-Catch includes runoff simulations within computational units by employing the interception, snow and soil routines, as well as runoff and channel routing. The soil routine, which is the key model feature, combines the SCS-CN method, an analytically integrated nonlinear outflow equation and the Brooks-Corey relation for unsaturated conductivity in an innovative manner. To advance runoff routing in 3DNet-Catch, an approach for analytical integration of the linear and nonlinear outflow equations is implemented. Most model parameters are physically meaningful, thus facilitating model calibration. The model structure can be adjusted according to soil and groundwater flow data, and it can include hydraulic structures, thereby providing adaptability to local conditions. A comprehensive hydrologic evaluation framework is established and conducted to examine whether 3DNet-Catch is adequately parameterised and can accurately reproduce catchment hydrologic response. The model parameterisation is evaluated by sensitivity, identifiability and correlation analyses. Model efficiency is quantified in terms of performance measures, hydrologic signatures and plausibility of the simulated hydrological processes. The results show high sensitivity of the hydrologic variables and performance measures to the model parameters, particularly to those of the soil routine. The parameters are uncorrelated and generally well identifiable. The model performs equally well in the calibration and evaluation periods. High efficiency in the hydrological signatures related to the soil routine indicates its robustness. The results, therefore, suggest that 3DNet-Catch is a comprehensively parameterised, versatile hydrologic model. It realistically reproduces observed hydrographs with modest data requirements, thus being appropriate for both engineering applications and investigative catchment dynamics studies.
PB  - Elsevier B.V.
T2  - Journal of Hydrology
T1  - The 3DNet-Catch hydrologic model: Development and evaluation
EP  - 45
SP  - 26
VL  - 568
DO  - 10.1016/j.jhydrol.2018.10.040
ER  - 

@article{
author = "Todorović, Andrijana and Stanić, Miloš and Vasilić, Željko and Plavšić, Jasna",
year = "2019",
abstract = "Hydrologic models are important for effective water resources management. They vary in complexity from parsimonious, spatially lumped, to physically-based, fully distributed models, which are generally expected to outperform the former. Wide applications of complex models are limited due to high data and computational demands. Therefore, a new approach based on well-balanced model complexity is needed to obtain reasonable simulation results with low data requirements. This paper presents a novel 3DNet-Catch hydrologic model, developed to represent key processes in sloped catchments under a temperate climate with modest data requirements. 3DNet-Catch includes runoff simulations within computational units by employing the interception, snow and soil routines, as well as runoff and channel routing. The soil routine, which is the key model feature, combines the SCS-CN method, an analytically integrated nonlinear outflow equation and the Brooks-Corey relation for unsaturated conductivity in an innovative manner. To advance runoff routing in 3DNet-Catch, an approach for analytical integration of the linear and nonlinear outflow equations is implemented. Most model parameters are physically meaningful, thus facilitating model calibration. The model structure can be adjusted according to soil and groundwater flow data, and it can include hydraulic structures, thereby providing adaptability to local conditions. A comprehensive hydrologic evaluation framework is established and conducted to examine whether 3DNet-Catch is adequately parameterised and can accurately reproduce catchment hydrologic response. The model parameterisation is evaluated by sensitivity, identifiability and correlation analyses. Model efficiency is quantified in terms of performance measures, hydrologic signatures and plausibility of the simulated hydrological processes. The results show high sensitivity of the hydrologic variables and performance measures to the model parameters, particularly to those of the soil routine. The parameters are uncorrelated and generally well identifiable. The model performs equally well in the calibration and evaluation periods. High efficiency in the hydrological signatures related to the soil routine indicates its robustness. The results, therefore, suggest that 3DNet-Catch is a comprehensively parameterised, versatile hydrologic model. It realistically reproduces observed hydrographs with modest data requirements, thus being appropriate for both engineering applications and investigative catchment dynamics studies.",
publisher = "Elsevier B.V.",
journal = "Journal of Hydrology",
title = "The 3DNet-Catch hydrologic model: Development and evaluation",
pages = "45-26",
volume = "568",
doi = "10.1016/j.jhydrol.2018.10.040"
}

Todorović, A., Stanić, M., Vasilić, Ž.,& Plavšić, J.. (2019). The 3DNet-Catch hydrologic model: Development and evaluation. in Journal of Hydrology
Elsevier B.V.., 568, 26-45.
https://doi.org/10.1016/j.jhydrol.2018.10.040

Todorović A, Stanić M, Vasilić Ž, Plavšić J. The 3DNet-Catch hydrologic model: Development and evaluation. in Journal of Hydrology. 2019;568:26-45.
doi:10.1016/j.jhydrol.2018.10.040 .

Todorović, Andrijana, Stanić, Miloš, Vasilić, Željko, Plavšić, Jasna, "The 3DNet-Catch hydrologic model: Development and evaluation" in Journal of Hydrology, 568 (2019):26-45,
https://doi.org/10.1016/j.jhydrol.2018.10.040 . .

TY  - JOUR
AU  - Todorović, Andrijana
AU  - Stanić, Miloš
AU  - Vasilić, Željko
AU  - Plavšić, Jasna
PY  - 2019
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1006
AB  - Hydrologic models are important for effective water resources management. They vary in complexity from parsimonious, spatially lumped, to physically-based, fully distributed models, which are generally expected to outperform the former. Wide applications of complex models are limited due to high data and computational demands. Therefore, a new approach based on well-balanced model complexity is needed to obtain reasonable simulation results with low data requirements. This paper presents a novel 3DNet-Catch hydrologic model, developed to represent key processes in sloped catchments under a temperate climate with modest data requirements. 3DNet-Catch includes runoff simulations within computational units by employing the interception, snow and soil routines, as well as runoff and channel routing. The soil routine, which is the key model feature, combines the SCS-CN method, an analytically integrated nonlinear outflow equation and the Brooks-Corey relation for unsaturated conductivity in an innovative manner. To advance runoff routing in 3DNet-Catch, an approach for analytical integration of the linear and nonlinear outflow equations is implemented. Most model parameters are physically meaningful, thus facilitating model calibration. The model structure can be adjusted according to soil and groundwater flow data, and it can include hydraulic structures, thereby providing adaptability to local conditions. A comprehensive hydrologic evaluation framework is established and conducted to examine whether 3DNet-Catch is adequately parameterised and can accurately reproduce catchment hydrologic response. The model parameterisation is evaluated by sensitivity, identifiability and correlation analyses. Model efficiency is quantified in terms of performance measures, hydrologic signatures and plausibility of the simulated hydrological processes. The results show high sensitivity of the hydrologic variables and performance measures to the model parameters, particularly to those of the soil routine. The parameters are uncorrelated and generally well identifiable. The model performs equally well in the calibration and evaluation periods. High efficiency in the hydrological signatures related to the soil routine indicates its robustness. The results, therefore, suggest that 3DNet-Catch is a comprehensively parameterised, versatile hydrologic model. It realistically reproduces observed hydrographs with modest data requirements, thus being appropriate for both engineering applications and investigative catchment dynamics studies.
PB  - Elsevier B.V.
T2  - Journal of Hydrology
T1  - The 3DNet-Catch hydrologic model: Development and evaluation
EP  - 45
SP  - 26
VL  - 568
DO  - 10.1016/j.jhydrol.2018.10.040
ER  - 

@article{
author = "Todorović, Andrijana and Stanić, Miloš and Vasilić, Željko and Plavšić, Jasna",
year = "2019",
abstract = "Hydrologic models are important for effective water resources management. They vary in complexity from parsimonious, spatially lumped, to physically-based, fully distributed models, which are generally expected to outperform the former. Wide applications of complex models are limited due to high data and computational demands. Therefore, a new approach based on well-balanced model complexity is needed to obtain reasonable simulation results with low data requirements. This paper presents a novel 3DNet-Catch hydrologic model, developed to represent key processes in sloped catchments under a temperate climate with modest data requirements. 3DNet-Catch includes runoff simulations within computational units by employing the interception, snow and soil routines, as well as runoff and channel routing. The soil routine, which is the key model feature, combines the SCS-CN method, an analytically integrated nonlinear outflow equation and the Brooks-Corey relation for unsaturated conductivity in an innovative manner. To advance runoff routing in 3DNet-Catch, an approach for analytical integration of the linear and nonlinear outflow equations is implemented. Most model parameters are physically meaningful, thus facilitating model calibration. The model structure can be adjusted according to soil and groundwater flow data, and it can include hydraulic structures, thereby providing adaptability to local conditions. A comprehensive hydrologic evaluation framework is established and conducted to examine whether 3DNet-Catch is adequately parameterised and can accurately reproduce catchment hydrologic response. The model parameterisation is evaluated by sensitivity, identifiability and correlation analyses. Model efficiency is quantified in terms of performance measures, hydrologic signatures and plausibility of the simulated hydrological processes. The results show high sensitivity of the hydrologic variables and performance measures to the model parameters, particularly to those of the soil routine. The parameters are uncorrelated and generally well identifiable. The model performs equally well in the calibration and evaluation periods. High efficiency in the hydrological signatures related to the soil routine indicates its robustness. The results, therefore, suggest that 3DNet-Catch is a comprehensively parameterised, versatile hydrologic model. It realistically reproduces observed hydrographs with modest data requirements, thus being appropriate for both engineering applications and investigative catchment dynamics studies.",
publisher = "Elsevier B.V.",
journal = "Journal of Hydrology",
title = "The 3DNet-Catch hydrologic model: Development and evaluation",
pages = "45-26",
volume = "568",
doi = "10.1016/j.jhydrol.2018.10.040"
}

Todorović, A., Stanić, M., Vasilić, Ž.,& Plavšić, J.. (2019). The 3DNet-Catch hydrologic model: Development and evaluation. in Journal of Hydrology
Elsevier B.V.., 568, 26-45.
https://doi.org/10.1016/j.jhydrol.2018.10.040

Todorović A, Stanić M, Vasilić Ž, Plavšić J. The 3DNet-Catch hydrologic model: Development and evaluation. in Journal of Hydrology. 2019;568:26-45.
doi:10.1016/j.jhydrol.2018.10.040 .

Todorović, Andrijana, Stanić, Miloš, Vasilić, Željko, Plavšić, Jasna, "The 3DNet-Catch hydrologic model: Development and evaluation" in Journal of Hydrology, 568 (2019):26-45,
https://doi.org/10.1016/j.jhydrol.2018.10.040 . .

TY  - JOUR
AU  - Vasilić, Željko
AU  - Stanić, Miloš
AU  - Kapelan, Zoran
AU  - Ivetić, Damjan
AU  - Prodanović, Dušan
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/953
AB  - Different methods have been developed in the past to formulate and solve steady-state hydraulics of a water distribution system (WDS). The most widely used method nowadays is probably the global gradient algorithm (GGA). The loop-flow method (also known as the Q method) represents a viable alternative to GGA, especially when combined with suitably preprocessed network data. The main advantage of the Q method over the GGA is in the smaller number of unknowns to solve for, which is coming from the fact that real WDSs typically have far less loops than nodes. A new loop-flow-type method, relying on the novel triangulation based loops identification algorithm (TRIBAL) that was implemented in the corresponding new hydraulic solver (Q), is presented in this paper (TRIBAL-Q). The new method aims to exploit this advantage, while overcoming key drawbacks of existing Q methods. The performance of the TRIBAL-Q-based solver is compared with the GGA-based solver on four large real networks of different complexity and topology. The results obtained demonstrate that, despite requiring an increased number of iterations to converge, the TRIBAL-Q method-based solver is substantially computationally faster, has slightly better numerical stability, and is equally accurate in making predictions when compared with the GGA-based hydraulic solver.
PB  - American Society of Civil Engineers (ASCE)
T2  - Journal of Water Resources Planning and Management
T1  - Improved Loop-Flow Method for Hydraulic Analysis of Water Distribution Systems
IS  - 4
VL  - 144
DO  - 10.1061/(ASCE)WR.1943-5452.0000922
ER  - 

@article{
author = "Vasilić, Željko and Stanić, Miloš and Kapelan, Zoran and Ivetić, Damjan and Prodanović, Dušan",
year = "2018",
abstract = "Different methods have been developed in the past to formulate and solve steady-state hydraulics of a water distribution system (WDS). The most widely used method nowadays is probably the global gradient algorithm (GGA). The loop-flow method (also known as the Q method) represents a viable alternative to GGA, especially when combined with suitably preprocessed network data. The main advantage of the Q method over the GGA is in the smaller number of unknowns to solve for, which is coming from the fact that real WDSs typically have far less loops than nodes. A new loop-flow-type method, relying on the novel triangulation based loops identification algorithm (TRIBAL) that was implemented in the corresponding new hydraulic solver (Q), is presented in this paper (TRIBAL-Q). The new method aims to exploit this advantage, while overcoming key drawbacks of existing Q methods. The performance of the TRIBAL-Q-based solver is compared with the GGA-based solver on four large real networks of different complexity and topology. The results obtained demonstrate that, despite requiring an increased number of iterations to converge, the TRIBAL-Q method-based solver is substantially computationally faster, has slightly better numerical stability, and is equally accurate in making predictions when compared with the GGA-based hydraulic solver.",
publisher = "American Society of Civil Engineers (ASCE)",
journal = "Journal of Water Resources Planning and Management",
title = "Improved Loop-Flow Method for Hydraulic Analysis of Water Distribution Systems",
number = "4",
volume = "144",
doi = "10.1061/(ASCE)WR.1943-5452.0000922"
}

Vasilić, Ž., Stanić, M., Kapelan, Z., Ivetić, D.,& Prodanović, D.. (2018). Improved Loop-Flow Method for Hydraulic Analysis of Water Distribution Systems. in Journal of Water Resources Planning and Management
American Society of Civil Engineers (ASCE)., 144(4).
https://doi.org/10.1061/(ASCE)WR.1943-5452.0000922

Vasilić Ž, Stanić M, Kapelan Z, Ivetić D, Prodanović D. Improved Loop-Flow Method for Hydraulic Analysis of Water Distribution Systems. in Journal of Water Resources Planning and Management. 2018;144(4).
doi:10.1061/(ASCE)WR.1943-5452.0000922 .

Vasilić, Željko, Stanić, Miloš, Kapelan, Zoran, Ivetić, Damjan, Prodanović, Dušan, "Improved Loop-Flow Method for Hydraulic Analysis of Water Distribution Systems" in Journal of Water Resources Planning and Management, 144, no. 4 (2018),
https://doi.org/10.1061/(ASCE)WR.1943-5452.0000922 . .

TY  - JOUR
AU  - Stanić, Miloš
AU  - Todorović, Andrijana
AU  - Vasilić, Željko
AU  - Plavšić, Jasna
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/934
AB  - Notwithstanding recent advances in hydrological modelling, flood simulations remain challenging since many processes must be simulated with high computational efficiency. This paper presents a novel geographic information system (GIS)-oriented platform 3DNet and the associated hydrologic model, with focus on the platform and model features that are relevant for flood simulations. The platform enables hydraulic structures to be incorporated in the hydrologic model, as well as water retention. A limiting capacity can be imposed on every river reach enabling estimation of flooding volume. Runoff is simulated within irregularly shaped units that can be aggregated providing spatial flexibility, i.e. model setup can vary from lumped to semi- and fully-distributed. The model contains many parameters with a physical connotation that can be inferred from catchment characteristics, and it enables simulations with minimum data requirements. All algorithms are implemented in C++ warranting fast computations, while the spatial flexibility can provide additional speed-up. The model is used for a reconstruction of a devastating flood in the Kolubara catchment in May 2014. Despite incomplete and uncertain observations, reasonable results across the catchment are obtained with the plausible parameter estimates. The results suggest that enclosure of the presented features in flood simulation tools would improve simulation accuracy and efficiency.
T2  - Journal of Hydroinformatics
T1  - Extreme flood reconstruction by using the 3DNet platform for hydrological modelling
EP  - 783
IS  - 4
SP  - 766
VL  - 20
DO  - 10.2166/hydro.2017.050
ER  - 

@article{
author = "Stanić, Miloš and Todorović, Andrijana and Vasilić, Željko and Plavšić, Jasna",
year = "2018",
abstract = "Notwithstanding recent advances in hydrological modelling, flood simulations remain challenging since many processes must be simulated with high computational efficiency. This paper presents a novel geographic information system (GIS)-oriented platform 3DNet and the associated hydrologic model, with focus on the platform and model features that are relevant for flood simulations. The platform enables hydraulic structures to be incorporated in the hydrologic model, as well as water retention. A limiting capacity can be imposed on every river reach enabling estimation of flooding volume. Runoff is simulated within irregularly shaped units that can be aggregated providing spatial flexibility, i.e. model setup can vary from lumped to semi- and fully-distributed. The model contains many parameters with a physical connotation that can be inferred from catchment characteristics, and it enables simulations with minimum data requirements. All algorithms are implemented in C++ warranting fast computations, while the spatial flexibility can provide additional speed-up. The model is used for a reconstruction of a devastating flood in the Kolubara catchment in May 2014. Despite incomplete and uncertain observations, reasonable results across the catchment are obtained with the plausible parameter estimates. The results suggest that enclosure of the presented features in flood simulation tools would improve simulation accuracy and efficiency.",
journal = "Journal of Hydroinformatics",
title = "Extreme flood reconstruction by using the 3DNet platform for hydrological modelling",
pages = "783-766",
number = "4",
volume = "20",
doi = "10.2166/hydro.2017.050"
}

Stanić, M., Todorović, A., Vasilić, Ž.,& Plavšić, J.. (2018). Extreme flood reconstruction by using the 3DNet platform for hydrological modelling. in Journal of Hydroinformatics, 20(4), 766-783.
https://doi.org/10.2166/hydro.2017.050

Stanić M, Todorović A, Vasilić Ž, Plavšić J. Extreme flood reconstruction by using the 3DNet platform for hydrological modelling. in Journal of Hydroinformatics. 2018;20(4):766-783.
doi:10.2166/hydro.2017.050 .

Stanić, Miloš, Todorović, Andrijana, Vasilić, Željko, Plavšić, Jasna, "Extreme flood reconstruction by using the 3DNet platform for hydrological modelling" in Journal of Hydroinformatics, 20, no. 4 (2018):766-783,
https://doi.org/10.2166/hydro.2017.050 . .

TY  - JOUR
AU  - Krstić, Katarina
AU  - Đukić, Aleksandar
AU  - Vasilić, Željko
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1109
T2  - Water Research and Management
T1  - Bridge Deck Runoff Water Quality Modeling - The "Gazela" Bridge Case Study
EP  - 28
IS  - 3
SP  - 23
VL  - 8
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1109
ER  - 

@article{
author = "Krstić, Katarina and Đukić, Aleksandar and Vasilić, Željko",
year = "2018",
journal = "Water Research and Management",
title = "Bridge Deck Runoff Water Quality Modeling - The "Gazela" Bridge Case Study",
pages = "28-23",
number = "3",
volume = "8",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1109"
}

Krstić, K., Đukić, A.,& Vasilić, Ž.. (2018). Bridge Deck Runoff Water Quality Modeling - The "Gazela" Bridge Case Study. in Water Research and Management, 8(3), 23-28.
https://hdl.handle.net/21.15107/rcub_grafar_1109

Krstić K, Đukić A, Vasilić Ž. Bridge Deck Runoff Water Quality Modeling - The "Gazela" Bridge Case Study. in Water Research and Management. 2018;8(3):23-28.
https://hdl.handle.net/21.15107/rcub_grafar_1109 .

Krstić, Katarina, Đukić, Aleksandar, Vasilić, Željko, "Bridge Deck Runoff Water Quality Modeling - The "Gazela" Bridge Case Study" in Water Research and Management, 8, no. 3 (2018):23-28,
https://hdl.handle.net/21.15107/rcub_grafar_1109 .

TY  - CONF
AU  - Vasilić, Željko
AU  - Stanić, Miloš
AU  - Kapelan, Zoran
AU  - Prodanović, Dušan
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1599
AB  - Solution of the nonlinear system of equations describing the network hydraulics problem can be formulated in several different manners, yielding various methods of solution. The most popular formulation is probably the Global Gradient Algorithm (GGA). Loop-flow formulation is another method revisited by number of researchers in recent years. Loop-flow method has the smaller system matrix to solve, which is a benefit over the GGA’s matrix, coming from the fact that real networks typically have far less loops than nodes. However, need for cumbersome pre-processing to identify network loops and sparsity of solution matrix, which is highly dependent of implemented loop identification algorithm, remain key drawbacks of existing loop-flow methods. In addition, systematic testing on the real life networks of different topologies and complexities is still somewhat lacking in the literature. In this paper, new loop-flow type method based on the novel TRIangulation BAsed Loop identification algorithm (TRIBAL) coupled with efficient implementation of loop-flow based hydraulic solver (ΔQ) is presented. Performance of the new TRIBAL ΔQ method based solver is tested through the comparison with the reference GGA solver. Preliminary results show that significant calculation speedups can be achieved with proposed method, maintaining prediction accuracy and convergence of the reference solver.
PB  - EasyChair,
C3  - HIC 2018. 13th International Conference on Hydroinformatics
T1  - Advanced Loop-flow Method for Fast Hydraulic Simulations
EP  - 2161
SP  - 2155
VL  - 3
DO  - 10.29007/p3ft
ER  - 

@conference{
author = "Vasilić, Željko and Stanić, Miloš and Kapelan, Zoran and Prodanović, Dušan",
year = "2018",
abstract = "Solution of the nonlinear system of equations describing the network hydraulics problem can be formulated in several different manners, yielding various methods of solution. The most popular formulation is probably the Global Gradient Algorithm (GGA). Loop-flow formulation is another method revisited by number of researchers in recent years. Loop-flow method has the smaller system matrix to solve, which is a benefit over the GGA’s matrix, coming from the fact that real networks typically have far less loops than nodes. However, need for cumbersome pre-processing to identify network loops and sparsity of solution matrix, which is highly dependent of implemented loop identification algorithm, remain key drawbacks of existing loop-flow methods. In addition, systematic testing on the real life networks of different topologies and complexities is still somewhat lacking in the literature. In this paper, new loop-flow type method based on the novel TRIangulation BAsed Loop identification algorithm (TRIBAL) coupled with efficient implementation of loop-flow based hydraulic solver (ΔQ) is presented. Performance of the new TRIBAL ΔQ method based solver is tested through the comparison with the reference GGA solver. Preliminary results show that significant calculation speedups can be achieved with proposed method, maintaining prediction accuracy and convergence of the reference solver.",
publisher = "EasyChair,",
journal = "HIC 2018. 13th International Conference on Hydroinformatics",
title = "Advanced Loop-flow Method for Fast Hydraulic Simulations",
pages = "2161-2155",
volume = "3",
doi = "10.29007/p3ft"
}

Vasilić, Ž., Stanić, M., Kapelan, Z.,& Prodanović, D.. (2018). Advanced Loop-flow Method for Fast Hydraulic Simulations. in HIC 2018. 13th International Conference on Hydroinformatics
EasyChair,., 3, 2155-2161.
https://doi.org/10.29007/p3ft

Vasilić Ž, Stanić M, Kapelan Z, Prodanović D. Advanced Loop-flow Method for Fast Hydraulic Simulations. in HIC 2018. 13th International Conference on Hydroinformatics. 2018;3:2155-2161.
doi:10.29007/p3ft .

Vasilić, Željko, Stanić, Miloš, Kapelan, Zoran, Prodanović, Dušan, "Advanced Loop-flow Method for Fast Hydraulic Simulations" in HIC 2018. 13th International Conference on Hydroinformatics, 3 (2018):2155-2161,
https://doi.org/10.29007/p3ft . .

TY  - THES
AU  - Vasilić, Željko
PY  - 2018
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2259
AB  - Many water utilities, especially ones in developing countries, continue to operate low efficient water distribution networks (WDNs) and are consequently faced with significant amount of water (e.g. leakage) and revenue losses (i.e. non-revenue water – NRW). First step in reducing the NRW is assessment of water balance in WDN aimed to establish the baseline level of water losses. Then, water utilities can plan NRW reduction activities according to this baseline. Sectorization of WDN into District Metered Areas (DMAs) is the most cost-effective strategy used for active leakage (i.e. water loss) control, achieved by monitoring the flow data on DMAs’ boundaries. Sectorization of WDN has to be designed carefully, as required network interventions can endanger network’s water supply and pressure distribution. 
In this thesis new methods and algorithms, aimed to support making more effective and objective decisions regarding the WDN sectorization procedure, are presented, tested and validated. Presented methods and algorithms are part of proposed decision support methodology compensating for disadvantages in available methods, valuable to practicing engineers commencing implementation of sectorization strategy in WDN.
Main sectorization objective adopted in methodology presented in this thesis is to design layout of DMAs that will allow efficient tracking of water balance in the network. Least investment for field implementation and maintaining the same level of WDN’s operational efficiency are adopted as main design criteria. New sectorization algorithm, named DeNSE (Distribution Network SEctorization), is developed and presented, adopting above-named objective and design criteria. DeNSE algorithm utilizes newly developed uniformity index which drives the sectorization process and identifies clusters. New engineering heuristic is developed and used for placing the flow-meters and isolation valves on clusters’ boundary edges, making them DMAs. Post sectorization operational efficiency of WDN is evaluated using adopted performance indicators (PIs). Top-down approach to hierarchical sectorization of WDN, particulary convenient for water utilities constrained with limited funding and insufficient reliable input data, is also implemented in DeNSE algorithm. New method for hydraulic simulation, named TRIBAL-DQ is developed to address the issue of low computational efficiency, recognized in available sectorization methodologies employing optimization.  TRIBAL-DQ is a loop-flow based method which combines the novel TRIangulation Based ALgorithm (TRIBAL) for loop identification with efficient implementation of the loop-flow hydraulic solver (DQ).
TRIBAL-DQ method is tested on various networks of different complexities and topologies. This thesis reports only results of testing on literature benchmark networks, used to validate methods’ performance. TRIBAL-DQ method based hydraulic solver is compared to the node based solver implemented in EPANET, most prominent software for hydraulic calculation of WDN. New TRIBAL-DQ solver showed significant dominance in computational efficiency, with stable numerical performance and same level of prediction accuracy. 
DeNSE algorithm is benchmarked against other available sectorization methodologies on real-sized WDN. Obtained results demonstrate the ability of DeNSE algorithm to identify good set of feasible solutions, without worsening operational status of the WDN compared to its baseline condition. Reported computational efficiency of the algorithm is one of its strong points, as it allows generation of feasible solutions for large WDN in reasonable time. In this field, algorithm particularly outperforms methods employing multi-objective optimization (e.g. minutes compared to hours).
AB  - Комунална предузећа која управљају водоводним системима, нарочита она у земљама у развоју, суочена су са проблемима дотрајале и лоше одржаване дистрибутивне мрже који за последицу имају значајне количине воде која се губи у дистрибуцији. Први корак ка смањењу губитака у водоводном систему је процена водног биланса у дистрибутивној мрежи како би се утврдило почетно стање система, а затим и приступило планирању и предузимању мера за смањење губитака како би се то стање поправило. Најисплативија, и опште прихваћена, стратегија за остваривање овог циља је подела дистрибутивне мреже, односно њена секторизација, на тзв. основне зоне билансирања (ОЗБ). ОЗБ се у мрежи успостављају јасним дефинисањем њихових граница, на којима се инсталирају изолациони затварачи и мерачи протока. Избор ОЗБ није једнозначан, и приликом њиховог дефинисања мора се водити рачуна о планираним интервенцијама у мрежи које могу имати негативан утицај на водоснабдевање потрошача и распоред притисака у мрежи.    
У овој дисератацији су приказане и тестиране нове методе и алгоритми намењени за подршку одлучивању приликом секторизације водоводне дистрибутивне мреже на ОЗБ. Презентоване методе и алгоритми надомешћују недостатке постојећих метода и могу бити од користи инжењерима који се у пракси баве задатком секторизације дистрибутивних мрежа.
Основни циљ методологије за секторизацију приказане у овој дисертацији је дефинисање распореда ОЗБ који ће омогућити ефикасно праћење водног биланса у дистрибутивној мрежи. Основни критеријуми за вредновање и избор оптималног решења су минимална улагања у неопходне интервенције у мрежи и очување поузданости система. У дисертацији је приказан нови алгоритам за секторизацију водоводне мреже, назван DeNSE (Distribution Network SEctorization), заснован на претходно наведеном основном циљу и критеријумима. Секторизација применом DeNSE алгоритма је базирана на употреби новог индекса униформности мреже, који омогућава идентификацију зона у мрежи уједначених према потрошњи. За дефинисање ОЗБ, на границе претходно идентификованих зона потребно је поставити мераче протока и изолационе затвараче. За ове потребе развијена је и приказана методлогија засновна на практичним инжењерским принципима. За процену поузданости система након секторизације коришћени су усвојени индикатори перформанси (PIs – Performance Indicators). Предвиђена је и могућност за хијерархијску секторизацију дистрибутивне мреже, нарочито привлачна за комунална предузећа која располажу ограниченим финансијским средствима и имају потребу да процес секторизације изведу у неколико фаза. Услед проблема са значајним рачунарским временом који имају постојеће методе за секторизацију које користе оптимизацију, у оквиру истраживања је развијен и нови метод за хидраулички прорачун мрежа под притиском, назван TRIBAL-DQ. TRIBAL-DQ метод је заснован на примени новог алгоритма за идентификацију прстенова у мрежи базираног на триангулацији (TRIBAL – TRIangulation Based ALgorithm) и ефикасној имплементацији нумеричког модела хидрауличког прорачуна базираног на методи прстенова (DQ). 
TRIBAL-DQ метод је тестиран на бројним дистрибутивним мрежама различите сложености. У овој дисертацији су приказани само резултати добијени применом на тест-мрежама познатим из литературе, како би се потврдила њихова ваљаност. TRIBAL-DQ метод је упоређен са методом коју користи најпознатији софтвер за хидраулички прорачун мрежа под притиском –  EPANET. Резултати приказују значајну предност новог метода у погледу рачунарске ефикаснонсти, уз очување нумеричке стабилности и тачности решења хидрауличког прорачуна. 
DeNSE алгоритам је упоређен са постојећим методама за секторизацију дистрибутивних мрежа. Резултати потврђују да је нови алгоритам у стању да идентификује скуп могућих решења, која не угрожавају поузданост система и снабдевање потрошача. Рачунарска ефикаснонст DeNSE алгоритма је једна од његових најзначајнијих предности јер омогућава идентификацију не једног, већ скупа могућих решења за реалне дистрибутивне мреже у релативно кратком рачунарском времену. Ова чињеница посебно долази до изражаја када се рачунарско време DeNSE алгоритма упореди са рачунарским временом метода које користе оптимизационе алгоритме (минути у поређењу са сатима).
T1  - Decision Support Algorithms for Sectorization of Water Distribution Networks
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2259
ER  - 

@phdthesis{
author = "Vasilić, Željko",
year = "2018",
abstract = "Many water utilities, especially ones in developing countries, continue to operate low efficient water distribution networks (WDNs) and are consequently faced with significant amount of water (e.g. leakage) and revenue losses (i.e. non-revenue water – NRW). First step in reducing the NRW is assessment of water balance in WDN aimed to establish the baseline level of water losses. Then, water utilities can plan NRW reduction activities according to this baseline. Sectorization of WDN into District Metered Areas (DMAs) is the most cost-effective strategy used for active leakage (i.e. water loss) control, achieved by monitoring the flow data on DMAs’ boundaries. Sectorization of WDN has to be designed carefully, as required network interventions can endanger network’s water supply and pressure distribution. 
In this thesis new methods and algorithms, aimed to support making more effective and objective decisions regarding the WDN sectorization procedure, are presented, tested and validated. Presented methods and algorithms are part of proposed decision support methodology compensating for disadvantages in available methods, valuable to practicing engineers commencing implementation of sectorization strategy in WDN.
Main sectorization objective adopted in methodology presented in this thesis is to design layout of DMAs that will allow efficient tracking of water balance in the network. Least investment for field implementation and maintaining the same level of WDN’s operational efficiency are adopted as main design criteria. New sectorization algorithm, named DeNSE (Distribution Network SEctorization), is developed and presented, adopting above-named objective and design criteria. DeNSE algorithm utilizes newly developed uniformity index which drives the sectorization process and identifies clusters. New engineering heuristic is developed and used for placing the flow-meters and isolation valves on clusters’ boundary edges, making them DMAs. Post sectorization operational efficiency of WDN is evaluated using adopted performance indicators (PIs). Top-down approach to hierarchical sectorization of WDN, particulary convenient for water utilities constrained with limited funding and insufficient reliable input data, is also implemented in DeNSE algorithm. New method for hydraulic simulation, named TRIBAL-DQ is developed to address the issue of low computational efficiency, recognized in available sectorization methodologies employing optimization.  TRIBAL-DQ is a loop-flow based method which combines the novel TRIangulation Based ALgorithm (TRIBAL) for loop identification with efficient implementation of the loop-flow hydraulic solver (DQ).
TRIBAL-DQ method is tested on various networks of different complexities and topologies. This thesis reports only results of testing on literature benchmark networks, used to validate methods’ performance. TRIBAL-DQ method based hydraulic solver is compared to the node based solver implemented in EPANET, most prominent software for hydraulic calculation of WDN. New TRIBAL-DQ solver showed significant dominance in computational efficiency, with stable numerical performance and same level of prediction accuracy. 
DeNSE algorithm is benchmarked against other available sectorization methodologies on real-sized WDN. Obtained results demonstrate the ability of DeNSE algorithm to identify good set of feasible solutions, without worsening operational status of the WDN compared to its baseline condition. Reported computational efficiency of the algorithm is one of its strong points, as it allows generation of feasible solutions for large WDN in reasonable time. In this field, algorithm particularly outperforms methods employing multi-objective optimization (e.g. minutes compared to hours)., Комунална предузећа која управљају водоводним системима, нарочита она у земљама у развоју, суочена су са проблемима дотрајале и лоше одржаване дистрибутивне мрже који за последицу имају значајне количине воде која се губи у дистрибуцији. Први корак ка смањењу губитака у водоводном систему је процена водног биланса у дистрибутивној мрежи како би се утврдило почетно стање система, а затим и приступило планирању и предузимању мера за смањење губитака како би се то стање поправило. Најисплативија, и опште прихваћена, стратегија за остваривање овог циља је подела дистрибутивне мреже, односно њена секторизација, на тзв. основне зоне билансирања (ОЗБ). ОЗБ се у мрежи успостављају јасним дефинисањем њихових граница, на којима се инсталирају изолациони затварачи и мерачи протока. Избор ОЗБ није једнозначан, и приликом њиховог дефинисања мора се водити рачуна о планираним интервенцијама у мрежи које могу имати негативан утицај на водоснабдевање потрошача и распоред притисака у мрежи.    
У овој дисератацији су приказане и тестиране нове методе и алгоритми намењени за подршку одлучивању приликом секторизације водоводне дистрибутивне мреже на ОЗБ. Презентоване методе и алгоритми надомешћују недостатке постојећих метода и могу бити од користи инжењерима који се у пракси баве задатком секторизације дистрибутивних мрежа.
Основни циљ методологије за секторизацију приказане у овој дисертацији је дефинисање распореда ОЗБ који ће омогућити ефикасно праћење водног биланса у дистрибутивној мрежи. Основни критеријуми за вредновање и избор оптималног решења су минимална улагања у неопходне интервенције у мрежи и очување поузданости система. У дисертацији је приказан нови алгоритам за секторизацију водоводне мреже, назван DeNSE (Distribution Network SEctorization), заснован на претходно наведеном основном циљу и критеријумима. Секторизација применом DeNSE алгоритма је базирана на употреби новог индекса униформности мреже, који омогућава идентификацију зона у мрежи уједначених према потрошњи. За дефинисање ОЗБ, на границе претходно идентификованих зона потребно је поставити мераче протока и изолационе затвараче. За ове потребе развијена је и приказана методлогија засновна на практичним инжењерским принципима. За процену поузданости система након секторизације коришћени су усвојени индикатори перформанси (PIs – Performance Indicators). Предвиђена је и могућност за хијерархијску секторизацију дистрибутивне мреже, нарочито привлачна за комунална предузећа која располажу ограниченим финансијским средствима и имају потребу да процес секторизације изведу у неколико фаза. Услед проблема са значајним рачунарским временом који имају постојеће методе за секторизацију које користе оптимизацију, у оквиру истраживања је развијен и нови метод за хидраулички прорачун мрежа под притиском, назван TRIBAL-DQ. TRIBAL-DQ метод је заснован на примени новог алгоритма за идентификацију прстенова у мрежи базираног на триангулацији (TRIBAL – TRIangulation Based ALgorithm) и ефикасној имплементацији нумеричког модела хидрауличког прорачуна базираног на методи прстенова (DQ). 
TRIBAL-DQ метод је тестиран на бројним дистрибутивним мрежама различите сложености. У овој дисертацији су приказани само резултати добијени применом на тест-мрежама познатим из литературе, како би се потврдила њихова ваљаност. TRIBAL-DQ метод је упоређен са методом коју користи најпознатији софтвер за хидраулички прорачун мрежа под притиском –  EPANET. Резултати приказују значајну предност новог метода у погледу рачунарске ефикаснонсти, уз очување нумеричке стабилности и тачности решења хидрауличког прорачуна. 
DeNSE алгоритам је упоређен са постојећим методама за секторизацију дистрибутивних мрежа. Резултати потврђују да је нови алгоритам у стању да идентификује скуп могућих решења, која не угрожавају поузданост система и снабдевање потрошача. Рачунарска ефикаснонст DeNSE алгоритма је једна од његових најзначајнијих предности јер омогућава идентификацију не једног, већ скупа могућих решења за реалне дистрибутивне мреже у релативно кратком рачунарском времену. Ова чињеница посебно долази до изражаја када се рачунарско време DeNSE алгоритма упореди са рачунарским временом метода које користе оптимизационе алгоритме (минути у поређењу са сатима).",
title = "Decision Support Algorithms for Sectorization of Water Distribution Networks",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2259"
}

Vasilić, Ž.. (2018). Decision Support Algorithms for Sectorization of Water Distribution Networks. .
https://hdl.handle.net/21.15107/rcub_grafar_2259

Vasilić Ž. Decision Support Algorithms for Sectorization of Water Distribution Networks. 2018;.
https://hdl.handle.net/21.15107/rcub_grafar_2259 .

Vasilić, Željko, "Decision Support Algorithms for Sectorization of Water Distribution Networks" (2018),
https://hdl.handle.net/21.15107/rcub_grafar_2259 .

TY  - CONF
AU  - Vasilić, Željko
AU  - Stanić, Miloš
AU  - Prodanović, Dušan
AU  - Kapelan, Zoran
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/867
AB  - This paper presents new algorithm for sectorisation of a Water Distribution Network (WDN) named Water Network Sectorisation (WNS) algorithm. Algorithm relies on Graph Theory to search for the Strong Connected Components (SCCs) in the graph, that are later on topologically sorted and aggregated in the sectors. Aggregation is driven by engineering criteria and heuristics such as sectors of approximately equal size with smallest number of links connecting them. Interventions in the network are not implemented in order to avoid negative effects on the networks' hydraulics. This is important especially for primary stages of sectorisation in which preserving hydraulic performance and minimal investment are the main objectives. Methodology is illustrated on a real size WDN. The results obtained show that the WNS algorithm can be used as an effective support tool in engineering practice.
PB  - Elsevier Ltd
C3  - Xviii International Conference On Water Distribution Systems, Wdsa2016
T1  - Network Sectorisation Through Aggregation of Strong Connected Components
EP  - 251
SP  - 244
VL  - 186
DO  - 10.1016/j.proeng.2017.03.238
ER  - 

@conference{
author = "Vasilić, Željko and Stanić, Miloš and Prodanović, Dušan and Kapelan, Zoran",
year = "2017",
abstract = "This paper presents new algorithm for sectorisation of a Water Distribution Network (WDN) named Water Network Sectorisation (WNS) algorithm. Algorithm relies on Graph Theory to search for the Strong Connected Components (SCCs) in the graph, that are later on topologically sorted and aggregated in the sectors. Aggregation is driven by engineering criteria and heuristics such as sectors of approximately equal size with smallest number of links connecting them. Interventions in the network are not implemented in order to avoid negative effects on the networks' hydraulics. This is important especially for primary stages of sectorisation in which preserving hydraulic performance and minimal investment are the main objectives. Methodology is illustrated on a real size WDN. The results obtained show that the WNS algorithm can be used as an effective support tool in engineering practice.",
publisher = "Elsevier Ltd",
journal = "Xviii International Conference On Water Distribution Systems, Wdsa2016",
title = "Network Sectorisation Through Aggregation of Strong Connected Components",
pages = "251-244",
volume = "186",
doi = "10.1016/j.proeng.2017.03.238"
}

Vasilić, Ž., Stanić, M., Prodanović, D.,& Kapelan, Z.. (2017). Network Sectorisation Through Aggregation of Strong Connected Components. in Xviii International Conference On Water Distribution Systems, Wdsa2016
Elsevier Ltd., 186, 244-251.
https://doi.org/10.1016/j.proeng.2017.03.238

Vasilić Ž, Stanić M, Prodanović D, Kapelan Z. Network Sectorisation Through Aggregation of Strong Connected Components. in Xviii International Conference On Water Distribution Systems, Wdsa2016. 2017;186:244-251.
doi:10.1016/j.proeng.2017.03.238 .

Vasilić, Željko, Stanić, Miloš, Prodanović, Dušan, Kapelan, Zoran, "Network Sectorisation Through Aggregation of Strong Connected Components" in Xviii International Conference On Water Distribution Systems, Wdsa2016, 186 (2017):244-251,
https://doi.org/10.1016/j.proeng.2017.03.238 . .