20.500.12556/DKUM-61665 Numerična simulacija kavitacijskih razmer v Venturijevem kanalu Numerical simulation of cavitating conditions in the Venturi channel V diplomski nalogi je opisana računalniška simulacija kavitacijskih razmer v Venturijevem kanalu, ki je bil eksperimentalno preizkušen v Laboratoriju za vodne in turbinske stroje Univerze v Ljubljani. Namen diplomske naloge je bil odkriti kavitacijske strukture, ki so se pojavljale med eksperimentom. Za simulacijo smo uporabili komercialni program Ansys Fluent, pri čemer smo uporabili turbulentni model RNG k-ε in upoštevali dvofazni homogeni tok z ustreznim kavitacijskim modelom. Mrežo Venturijevega kanala smo naredili s komercialnim programom za mreženje ICEM. Izračunane rezultate smo primerjali z rezultati eksperimenta in jih komentirali. Končni rezultati simulacije so pokazali, da se ujemajo z rezultati eksperimenta. This thesis deals with a numerical simulation of cavitating conditions in the Venturi channel that was experimentally tested in the Laboratory for Water and Turbine Machines at the University of Ljubljana. The purpose of this work was to find the cavitation structures that occurred during the experiment. For the simulation, the Ansys Fluent software and the RNG k-ε turbulence model were applied. Taken into consideration was a homogeneous two-phase flow with a suitable cavitation model. The ICEM software was used to generate the Venturi channel mesh. The calculated results were discussed and compared with the results of the experiment. The final results obtained from the simulation were consistent with the results of the experiment. Venturijev kanal kavitacija dvofazni tok numerična simulacija računalniška dinamika tekočin mikrocurek kavitacijski oblak Venturi channel cavitation two phase flow numerical simulation computational fluid dynamics micro-jet cavitation cloud true true false [T. Tibaut] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2016-08-13 17:08:27 2016-09-06 11:31:05 2022-06-27 03:06:16 2019-07-11 12:29:01 2016 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.528:621.224(043.2) 20126742 URN:SI:UM:DK:2NPUO6VO UN_Tibaut_Tilen_2016.pdf UN_Tibaut_Tilen_2016.pdf 1 DC7D352DEA121B3695D2B4E3C950CEE7 448d38b715960358717a493c41e7852b71432de4184ee899908cfcd1908e6347 03c4bc91-7c0d-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=98580 Fakulteta za strojništvo 0 0 0