20.500.12556/RUL-173013 Parametrična analiza 3D SPH simulacij obtekanja mostnih opornikov diplomska naloga Parametrical analysis of 3D SPH simulation of water flow around bridge pier graduation thesis Diplomska naloga obravnava simulacijo toka vode okoli valjastega mostnega opornika z uporabo odprtokodnega programa Dual SPHysics, ki temelji na metodi hidrodinamike zglajenih delcev (SPH). Cilj naloge je preizkus različnih parametrov simulacij in določitev njihovega vpliva na koeficient upora. Dobljene rezultate primerjamo s priporočili Evrokoda ter z eksperimentalnimi rezultati iz literature. Za simulacijo je bil izdelan standardiziran model zaprtega kanala z opornikom, na katerem je bilo izvedenih preko 250 variant simulacij, kjer se je geometrija ohranila, spreminjali pa so se parametri simulacije. V diplomskem delu so tako predstavljeni rezultati ter ugotovitve vplivov različnih parametrov na končni graf koeficienta upora v odvisnosti od Reynoldsovega števila. Predstavljena je tudi sama SPH metoda, njene bistvene enačbe ter XML koda, ki je bila uporabljena. This thesis focuses on the simulation of water flow around a cylindrical bridge pier using the opensource software Dual SPHysics, based on the smoothed particle hydrodynamics (SPH) method. The aim of the thesis is to test different simulation parameters and determine their effect on drag coefficient. The obtained results are compared with Eurocode recommendations and experimental data from literature. A standardized closed-channel model with a pier was created fort he simulation, on which over 250 simulation variants were performed, keeping the geometry constant while varying the simulation parameters. The thesis presents the results and findings on how different parameters influence the final drag coefficient graph in relation to Reynolds number. The SPH method itself is also introduced, including its key equations and the XML code used in the simulations. diplomske naloge gradbeništvo SPH DualSPHysics numerični model 3d simulacija koeficient upora XML graduation thesis civil engineering numerical model 3d simulation drag coefficient true false false [T. Breznikar] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-09-12 08:45:54 2025-09-12 08:45:55 2025-10-30 03:56:04 0000-00-00 00:00:00 2025 0 Ljubljana 2025 Ljubljana 1 spletni vir (1 datoteka PDF (IX, 50 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532:004.942(043.2) 174011 248985603 19115.pdf 19115.pdf 1 51A88BCB71986ED32627D73053DCE1C0 861519d5eca6ab699256a0252216a06298d0226fbb5300f81bbc5cc793259d13 f7c51b8a-8fa3-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=217165 Fakulteta za gradbeništvo in geodezijo 0 0 0