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Now showing items 41-50 of 109
Instability analysis of the air-water flow in porous medium / Analiza pojave nestabilnosti kod dvofaznog strujanja u poroznoj sredini
(Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd, 2010)
The paper deals with modeling of two phase (water-air) flow in coarse porous medium, where, after reaching some air velocity, instability of the flow occurs. Firstly, a linear stability analysis has been conducted for ...
Analytical models of confluences: A survey and models' assessment / Pregled i ocena analitičkih modela ušća
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2011)
Assumptions upon which development of 1D models of free-surface flow rest are not valid at open-channel junctions. Thus, the 1D flow equations cannot be used for calculation of upstream flow depths, or water levels in a ...
Near real time data assimilation of numerical simulation model for Danube river from Novi Sad to Iron Gate I: Test results / Asimilacija računskog modela Dunava od Novog Sada do HE "Đerdap 1" u približno realnom vremenu - rezultati testiranja
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2017)
In this paper, a novel data assimilation method for operational reservoir management on the Danube river section between Novi Sad and Iron Gate I is presented. The proposed data assimilation method allows discharges of ...
Water quality impact assessment of the River Ibar hydropower system / Analiza uticaja izgradnje sistema HE na Ibru na kvalitet vode
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2014)
Water quality impact assessment of the River Ibar hydropower cascade project is analyzed in this paper, as one of possible aspects of environmental impact assessment. Based on available data provided by authorized institutions, ...
Optimization of pressurized pipe networks modelled with ΔQ method / Optimizacija mreža pod pritiskom modeliranih ΔQ metodom
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2013)
Efficiency of optimization of water networks in terms of expenditure of computer running time depends on the speed of the hydraulic calculations. In this paper use of the ΔQ method for network calculation, was tested on ...
Expert system for operational planning and implementation flood control / Ekspertni sistemi za planiranje i operativno sprovođenje odbrane od poplava
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2015)
In the Theory of reliability there is well known fact: in the control chain of decision-making and management the least reliable link is - man. It is particularly evident in emergency situations, when one need to make a ...
Proračun linije nivoa u neprizmatičnom koritu za veliku vodu primenom metode razmene količine kretanja između glavnog korita i plavnih površina (primer korita jednostavne geometrije) / Water profile computations in non-prismatic compound channels with simple cross-sectional geometry using exchange discharge model
(Srpsko društvo za odvodnjavanje i navodnjavanje, 2017)
Cilj ovog rada je da se stručnoj javnosti prikažu mogućnosti modela razmene količine kretanja (MRKK) u proračunima linije nivoa duž neprizmatičnih korita za veliku vodu (KVV). Reč je o modelu koji je već uspešno primenjivan ...
Assessment of corrosive characteristics of water according to indices of water aggression: Example of well field in Vojvodina / Procena korozivnih karakteristika vode prema indeksima agresivnosti - primer bunarskog polja u Vojvodini
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2016)
For the assessment of aggressiveness and corrosiveness of water many indices have been developed and some of them are presented in this paper. Although number of indices has been developed indexes none of them has been ...
Mogućnosti aktivne odbrane od poplava upravljanjem uz primenu matematičkih modela - na primeru akumulacije Bočac na Vrbasu / Possibilities for active flood control management with the application of mathematical models - the case study of reservoir Bočac on Vrbas river
(Srpsko društvo za odvodnjavanje i navodnjavanjeAkademija inženjerskih nauka Srbije, 2019)
Sistemi zaštite od poplava spadaju u klasu najvažnijih, najvitalnijih sistema koje čovek gradi, jer su vezani za ciljeve opstanka, rasta i razvoja ljudskog društva. Zato su ti sistemi u stalnom razvoju, kako sa stanovišta ...
Numerical modeling of water temperature changes in reservoir Celije / Modeliranje sezonskih promena temperature vode akumulacije Ćelije
(Udruženje za tehnologiju vode i sanitarno inžinjerstvo, Beograd, 2013)
This paper presents the results of measurements and numerical modeling of water temperature changes in reservoir Celije in the period from April to October 2012. Reservoir Celije on the river Rasina, for many years attracts ...