Numerična simulacija kavitacijskih razmer v Venturijevem kanalu

diplomsko delo

Tilen Tibaut (Author), Ignacijo Biluš (Mentor), Matevž Dular (Co-mentor)

Abstract

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.

Keywords

Venturijev kanal;kavitacija;dvofazni tok;numerična simulacija;računalniška dinamika tekočin;mikrocurek;kavitacijski oblak;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[T. Tibaut]
UDC:	532.528:621.224(043.2)
COBISS:	20126742
Views:	968
Downloads:	145
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Numerical simulation of cavitating conditions in the Venturi channel
Secondary abstract:	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.
Secondary keywords:	Venturi channel;cavitation;two phase flow;numerical simulation;computational fluid dynamics;micro-jet;cavitation cloud;
URN:	URN:SI:UM:
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo
Pages:	XI, 52 f.
ID:	9160779