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Now showing items 11-20 of 22
Forecasting of THM concentration in distribution water supplying network / Prognoza sadržaja trihalometana u distribucionoj vodovodnoj mreži
(Savez inženjera i tehničara Srbije, Beograd, 2012)
The presence of free chlorine is a prerequisite for the formation of THM's, The THM concentration increases with extending the reaction time between natural organic matter and disinfectants, which means that these products ...
Numerical modelling and simulation of pollutant transport in Neretva / Numeričko modeliranje i simulacija transporta zagađenja Neretvom
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2012)
Waste water, discharged into the river system is in processes of transport and mixing. After fully cross mixing, the pollution transport is one-dimensional. The aim of the study was to model the discharge, salinity and ...
Numerical simulation of 3D flow at 90o straight-channel confluence with bed elevation discordance
(TuTech Verlag, TuTech Innovation GmbH, 2012)
The paper aims at studying the effect of difference in bed elevations between the tributary and main canals (∆zT) on the flow in the confluence hydrodynamics zone. To do this, a 3D numerical model is used for flow simulation ...
A review of the most commonly used methods for ungauged catchments flood flow estimation in Serbia
(12th International Multidisciplinary Scientific Geoconference, Sgem 2012, Vol. III, 2012)
This paper summarizes findings on the flood flow estimation in ungauged catchments during the last decade in Serbia. The method used for synthetic unit hydrograph ise well known in hydrological practice as SCS method. ...
Corrosion of cannon 75/27, model 1911. déport, from the collection of the Military Museum in Belgrade / Korozija topa 75/27, model 1911. deport iz kolekcije Vojnog muzeja u Beogradu
(Univerzitet u Beogradu - Mašinski fakultet, Beograd, 2012)
This paper analyzes the state of the French Cannon 75/27 model 1911. Déport made of steel. The amount of non-corroded materials, the presence of cracks and other defects in the cannon were determined by the radiographic ...
Hydraulic design of morning glory spillway with a deflector upstream of the vertical bend / Određivanje dimenzija šahtnog preliva empirijskim jednačinama
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2012)
Hydraulic design of shaft spillways (morning-glory spillways) with flow deflector before the vertical bend is considered. Based on the physical hydraulic model investigations of several structures and available experience ...
Nitrate removal from water by biological denitrification / Uklanjanje nitrata iz vode za piće primenom biološke denitrifikacije
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2012)
Ground water pollution by nitrate from routine agricultural practices is a common and growing problem in the major agricultural areas of the world. The concentration of nitrates in these areas may exceed the maximal limited ...
Application of 3D numerical models in confluence hydrodynamics modelling
(University of Illinois at Urbana-Champaign, 2012)
In this paper performance of the SSIIM2 model (3D finite-volume model with the k-ε-type turbulence model closure) in confluence hydrodynamics modelling is assessed using the published experimental ...
Concave Antiprisms of Second Sort with Regular Polygonal Bases
(Novi Sad: Faculty of Technical Sciences, University of Novi SadNovi Sad: Serbian Society for Geometry and Graphics (SUGIG), 2012)
The paper discusses determining the positions and spatial coordinates of the vertices of polyhedral structures - concave antiprisms of second sort. These polyhedra originate from folding the double row strip of equilateral ...
Controls at river confluences with discordant beds / Uticajni činioci na rečnim ušćima sa izdignutim dnom pritoke
(Savez građevinskih inženjera Srbije, Beograd, 2012)
The role of four parameters that are controlling river confluence hydrodynamics at discordant beds confluences is investigated using 3D numerical model. These are: the junction angle α, the momentum-flux ratio between the ...