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Numerical stability problems in hydrodynamic modelling of confluences with small junction angles
(Universidad de Concepción, 2009)
The paper addresses problems which arise from the use of 3D grids with quadrilateral faces on
the horizontal planes in hydrodynamic modelling of discordant beds asymmetrical confluences
with small junction angles. There ...
Design of class 4 cross section in axial compression according to EUROCODE 3
(MASE 13. International symposium 2009, 14th – 17th October 2009. Ohrid, Macedonia, Skopje 2009, Knjiga 1, 2009)
In this paper theoretic basis of design of class 4 cross section in axial compression according to EN1993-1-5 is given. Design procedure is given as an flow chart and ilustrated with an worked example. Plate buckling is ...
Compiled free surface mathematical models uncertainty propagation / Propagacija neodređenosti kod linijskih modela otvorenih tokova
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2009)
Free surface flow is usually simulated by 1D numerical models. This approach assumes flow simplification and requires model calibration in order to reproduce flow characteristics in a realistic way. The calibration and ...
Comparative analysis of the results obtained with 3d orthogonal and non-orthogonal grids in the 3d-flow models: Part 1 / Uporedna analiza rezultata dobijenih primenom ortogonalnih ineortogonalnih mreža u modelima prostornog tečenja - deo l
(Jugoslovensko društvo za odvodnjavanje i navodnjavanje, Beograd, 2006)
Application of orthogonal and non-orthogonal grids in numerical models of the three-dimensional flow is considered. A river confluence is chosen as an example due to strong three-dimensional flow effects occurring at the ...
Testing the stability of gps oscillators within Serbian permanent gps stations network
(19th IMEKO World Congress 2009, 2009)
Periodic tests of quartz oscillators incorporated in GPS receivers in Serbia are performed in accredited metrological laboratories by the procedure adopted in metrological laboratory ML160. However, receivers of Serbian ...
National traceability of GPS measurements in the Republic of Serbia
(20th International Metrology Symposium and 1st Regional Metrology Organisations Symposium 2008, RMO, 2008)
A traceability chain of Global positioning system (GPS) measurements to Serbian national standard UTC(ZMDM) is presented in the paper. An experiment on reproducing the secondary standard ML160 to working standards by ...
On the effect of the bed morphology on the river confluence hydrodynamics
(Proceedings of the International Conference on Fluvial Hydraulics - River Flow 2006, 2006)
A river confluence is known for the strong three-dimensional flow effects. The confluence hydrodynamics is significantly influenced by the river bed morphology. Two morphological features are typical for river confluences: ...
Procedures and Experiences on Using Desktop Scanner for Orthophoto Production
(International Society for Photogrammetry and Remote SensingCenkler Matbaasi,Istambul, 2004)
Paper presents procedures and experiences on using low cost desktop scanner Epson Expression 1640XL for orthophoto production.Complete process of scanning, scanner calibration and removal of systematic distortions of scanned ...
Theory Of Interference Of Large Molecules
(AIP Conference Proceedings, 2007)
In the experiments with large molecules, the diameter of particles has approached the width of the slits. Therefore, a theoretical description of these cases should include a finite particle size. We are developing a theory ...
Consequences of non planned urban development during turbulent times in Serbia - case study of suburb Kumodraz watershed in Belgrade
(Risk Management of Water Supply and Sanitation Systems, 2009)
Development is usually based oil numerous analyses accounting for planning, economy and population assessments as well as urbanism, architectural and civil engineering infrastructure planning and project design. The modern ...