TY  - JOUR
AU  - Kolarevic, Milena
AU  - Savić, Ljubodrag
AU  - Kapor, Radomir
AU  - Mladenovic, Nikola
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1069
T2  - Journal of Hydraulic Research
T1  - Closure to “Supercritical flow in circular conduit bends”
EP  - 241
IS  - 2
SP  - 240
VL  - 54
DO  - 10.1080/00221686.2016.1143883
ER  - 

@article{
author = "Kolarevic, Milena and Savić, Ljubodrag and Kapor, Radomir and Mladenovic, Nikola",
year = "2016",
journal = "Journal of Hydraulic Research",
title = "Closure to “Supercritical flow in circular conduit bends”",
pages = "241-240",
number = "2",
volume = "54",
doi = "10.1080/00221686.2016.1143883"
}

Kolarevic, M., Savić, L., Kapor, R.,& Mladenovic, N.. (2016). Closure to “Supercritical flow in circular conduit bends”. in Journal of Hydraulic Research, 54(2), 240-241.
https://doi.org/10.1080/00221686.2016.1143883

Kolarevic M, Savić L, Kapor R, Mladenovic N. Closure to “Supercritical flow in circular conduit bends”. in Journal of Hydraulic Research. 2016;54(2):240-241.
doi:10.1080/00221686.2016.1143883 .

Kolarevic, Milena, Savić, Ljubodrag, Kapor, Radomir, Mladenovic, Nikola, "Closure to “Supercritical flow in circular conduit bends”" in Journal of Hydraulic Research, 54, no. 2 (2016):240-241,
https://doi.org/10.1080/00221686.2016.1143883 . .

TY  - JOUR
AU  - Lučić, Milena
AU  - Savić, Ljubodrag
AU  - Kapor, Radomir
AU  - Mladenović, Nikola
PY  - 2015
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/652
AB  - Numerical modeling of supercritical flow in closed conduit bend is a continuation of the scale model experiments. The main goal of application of numerical model is to extend the range of investigation and to simulate conditions that could not be examined on scale model due to the limited capacity of the laboratory installation. Using the results of the numerical modeling, general conclusions and suggested empirical relationships (based on the scale model experiments) for the onset of a certain type of flow in the conduit, are checked. Numerical model is prepared using software package Fluent (Ansys-Fluid Dynamic).
AB  - Numeričko modeliranje burnog tečenja u krivini provodnika kružnog poprečnog preseka predstavlja nastavak ispitivanja koja su urađena na fizičkom modelu. Osnovni cilj primene numeričkog modela je da se proširi opseg ispitivanja, odnosno da se ispitaju drugačije karakteristike krivine, kao i uslovi tečenja u provodniku, koji zbog ograničenosti kapaciteta laboratorije, nisu mogli da se ispitaju na fizičkom modelu. Numerički model je formiranom u okviru programskog paketa Fluent (Ansys-Fluid Dynamic) i njegovom primenom su provereni opšti zaključci do kojih se došlo tokom modelskih ispitivanja, kao i primenljivost predloženih empirijskih izraza iz literature za nastanak određenog tipa tečenja u provodniku.
PB  - Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd
T2  - Vodoprivreda
T1  - Numerical modeling of supercritical flow in closed conduit bend
T1  - Numeričko modeliranje burnog tečenja u krivini zatvorenog provodnika
EP  - 260
IS  - 4-6
SP  - 253
VL  - 47
UR  - https://hdl.handle.net/21.15107/rcub_grafar_652
ER  - 

@article{
author = "Lučić, Milena and Savić, Ljubodrag and Kapor, Radomir and Mladenović, Nikola",
year = "2015",
abstract = "Numerical modeling of supercritical flow in closed conduit bend is a continuation of the scale model experiments. The main goal of application of numerical model is to extend the range of investigation and to simulate conditions that could not be examined on scale model due to the limited capacity of the laboratory installation. Using the results of the numerical modeling, general conclusions and suggested empirical relationships (based on the scale model experiments) for the onset of a certain type of flow in the conduit, are checked. Numerical model is prepared using software package Fluent (Ansys-Fluid Dynamic)., Numeričko modeliranje burnog tečenja u krivini provodnika kružnog poprečnog preseka predstavlja nastavak ispitivanja koja su urađena na fizičkom modelu. Osnovni cilj primene numeričkog modela je da se proširi opseg ispitivanja, odnosno da se ispitaju drugačije karakteristike krivine, kao i uslovi tečenja u provodniku, koji zbog ograničenosti kapaciteta laboratorije, nisu mogli da se ispitaju na fizičkom modelu. Numerički model je formiranom u okviru programskog paketa Fluent (Ansys-Fluid Dynamic) i njegovom primenom su provereni opšti zaključci do kojih se došlo tokom modelskih ispitivanja, kao i primenljivost predloženih empirijskih izraza iz literature za nastanak određenog tipa tečenja u provodniku.",
publisher = "Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd",
journal = "Vodoprivreda",
title = "Numerical modeling of supercritical flow in closed conduit bend, Numeričko modeliranje burnog tečenja u krivini zatvorenog provodnika",
pages = "260-253",
number = "4-6",
volume = "47",
url = "https://hdl.handle.net/21.15107/rcub_grafar_652"
}

Lučić, M., Savić, L., Kapor, R.,& Mladenović, N.. (2015). Numerical modeling of supercritical flow in closed conduit bend. in Vodoprivreda
Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd., 47(4-6), 253-260.
https://hdl.handle.net/21.15107/rcub_grafar_652

Lučić M, Savić L, Kapor R, Mladenović N. Numerical modeling of supercritical flow in closed conduit bend. in Vodoprivreda. 2015;47(4-6):253-260.
https://hdl.handle.net/21.15107/rcub_grafar_652 .

Lučić, Milena, Savić, Ljubodrag, Kapor, Radomir, Mladenović, Nikola, "Numerical modeling of supercritical flow in closed conduit bend" in Vodoprivreda, 47, no. 4-6 (2015):253-260,
https://hdl.handle.net/21.15107/rcub_grafar_652 .

TY  - JOUR
AU  - Kolarević, Milena
AU  - Savić, Ljubodrag
AU  - Kapor, Radomir
AU  - Mladenović, Nikola
PY  - 2015
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/696
AB  - A complex flow pattern occurring in a circular conduit bend with supercritical flow has been studied. The main objective was to obtain reliable criteria for prediction of the onset of helical and choking flow, in order to facilitate the design of bottom outlets, tunnel spillways and drainage collectors with bends. A series of scale model experiments provided data for developing empirical relationships describing the effects of the bend curvature, bend deflection angle and approach flow conditions (relative flow depth and Froude number) on the inception of helical and choking flow. Expressions for the energy bend loss coefficient were also proposed. The bend curvature and approach flow conditions proved to have a major influence on the onset of helical flow, while the deflection angle becomes an important parameter for angles less than 45 degrees. Bend curvature and deflection angle have commensurable influence on the onset of choking flow.
PB  - Taylor and Francis Ltd.
T2  - Journal of Hydraulic Research
T1  - Supercritical flow in circular conduit bends
EP  - 100
IS  - 1
SP  - 93
VL  - 53
DO  - 10.1080/00221686.2014.932856
ER  - 

@article{
author = "Kolarević, Milena and Savić, Ljubodrag and Kapor, Radomir and Mladenović, Nikola",
year = "2015",
abstract = "A complex flow pattern occurring in a circular conduit bend with supercritical flow has been studied. The main objective was to obtain reliable criteria for prediction of the onset of helical and choking flow, in order to facilitate the design of bottom outlets, tunnel spillways and drainage collectors with bends. A series of scale model experiments provided data for developing empirical relationships describing the effects of the bend curvature, bend deflection angle and approach flow conditions (relative flow depth and Froude number) on the inception of helical and choking flow. Expressions for the energy bend loss coefficient were also proposed. The bend curvature and approach flow conditions proved to have a major influence on the onset of helical flow, while the deflection angle becomes an important parameter for angles less than 45 degrees. Bend curvature and deflection angle have commensurable influence on the onset of choking flow.",
publisher = "Taylor and Francis Ltd.",
journal = "Journal of Hydraulic Research",
title = "Supercritical flow in circular conduit bends",
pages = "100-93",
number = "1",
volume = "53",
doi = "10.1080/00221686.2014.932856"
}

Kolarević, M., Savić, L., Kapor, R.,& Mladenović, N.. (2015). Supercritical flow in circular conduit bends. in Journal of Hydraulic Research
Taylor and Francis Ltd.., 53(1), 93-100.
https://doi.org/10.1080/00221686.2014.932856

Kolarević M, Savić L, Kapor R, Mladenović N. Supercritical flow in circular conduit bends. in Journal of Hydraulic Research. 2015;53(1):93-100.
doi:10.1080/00221686.2014.932856 .

Kolarević, Milena, Savić, Ljubodrag, Kapor, Radomir, Mladenović, Nikola, "Supercritical flow in circular conduit bends" in Journal of Hydraulic Research, 53, no. 1 (2015):93-100,
https://doi.org/10.1080/00221686.2014.932856 . .

TY  - JOUR
AU  - Zindović, Budo
AU  - Savić, Ljubodrag
AU  - Kapor, Radomir
AU  - Mladenović, Nikola
PY  - 2014
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/609
AB  - This paper deals with flow modelling of the stepped spillway for the Bogovina dam. The analysis was conducted using three approaches: scalemodelling, empirical equations and numerical modelling. An acceptable agreement was achieved between the empirical equations and the numerical model results, while both of them exhibit considerable differences when compared to scale-model. These discrepancies can be contributed to the difficulties in modelling the process of air-entrainment. Since air-entrainment is important for providing good estimates, existing empirical equations as well as numerical models require further improvements.
AB  - Tema rada je modeliranje strujnog polja na stepenastom brzotoku brane Bogovina. Analiza je sprovedena na rezultatima dobijenih pomoću: fizičkog modela, empirijskih jednačina i numeričkog modela. Slaganja rezultata empirijskih jednačina i numeričkog modela su u prihvatljivim granicama, dok je primećeno njihovo značajno odstupanje od rezultata merenja na fizičkom modelu. Uzrok ovih razlika je proces samo-aeracije mlaza. Budući da je ovaj proces važan za ovaj vid strujanja, nepohodno je poboljšati postojeće empirijske zavisnosti i numeričke modele.
PB  - Univerzitet u Beogradu - Mašinski fakultet, Beograd
T2  - FME Transactions
T1  - Stepped spillway flow: Comparison of numerical and scale models
T1  - Strujanje u stepenastom brzotoku - poređenje rezultata fizičkog i numeričkog modela
EP  - 223
IS  - 3
SP  - 218
VL  - 42
DO  - 10.5937/fmet1403218z
ER  - 

@article{
author = "Zindović, Budo and Savić, Ljubodrag and Kapor, Radomir and Mladenović, Nikola",
year = "2014",
abstract = "This paper deals with flow modelling of the stepped spillway for the Bogovina dam. The analysis was conducted using three approaches: scalemodelling, empirical equations and numerical modelling. An acceptable agreement was achieved between the empirical equations and the numerical model results, while both of them exhibit considerable differences when compared to scale-model. These discrepancies can be contributed to the difficulties in modelling the process of air-entrainment. Since air-entrainment is important for providing good estimates, existing empirical equations as well as numerical models require further improvements., Tema rada je modeliranje strujnog polja na stepenastom brzotoku brane Bogovina. Analiza je sprovedena na rezultatima dobijenih pomoću: fizičkog modela, empirijskih jednačina i numeričkog modela. Slaganja rezultata empirijskih jednačina i numeričkog modela su u prihvatljivim granicama, dok je primećeno njihovo značajno odstupanje od rezultata merenja na fizičkom modelu. Uzrok ovih razlika je proces samo-aeracije mlaza. Budući da je ovaj proces važan za ovaj vid strujanja, nepohodno je poboljšati postojeće empirijske zavisnosti i numeričke modele.",
publisher = "Univerzitet u Beogradu - Mašinski fakultet, Beograd",
journal = "FME Transactions",
title = "Stepped spillway flow: Comparison of numerical and scale models, Strujanje u stepenastom brzotoku - poređenje rezultata fizičkog i numeričkog modela",
pages = "223-218",
number = "3",
volume = "42",
doi = "10.5937/fmet1403218z"
}

Zindović, B., Savić, L., Kapor, R.,& Mladenović, N.. (2014). Stepped spillway flow: Comparison of numerical and scale models. in FME Transactions
Univerzitet u Beogradu - Mašinski fakultet, Beograd., 42(3), 218-223.
https://doi.org/10.5937/fmet1403218z

Zindović B, Savić L, Kapor R, Mladenović N. Stepped spillway flow: Comparison of numerical and scale models. in FME Transactions. 2014;42(3):218-223.
doi:10.5937/fmet1403218z .

Zindović, Budo, Savić, Ljubodrag, Kapor, Radomir, Mladenović, Nikola, "Stepped spillway flow: Comparison of numerical and scale models" in FME Transactions, 42, no. 3 (2014):218-223,
https://doi.org/10.5937/fmet1403218z . .