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Title:Eksperimentalno numerična analiza kavitacijskega toka okoli lopatičnega profila
Authors:ID Biluš, Ignacijo (Author)
ID Škerget, Leopold (Author)
ID Predin, Andrej (Author)
ID Hriberšek, Matjaž (Author)
Files:URL http://www.dlib.si/details/URN:NBN:SI:doc-9E19Z9VM
 
Language:Slovenian
Work type:Not categorized
Typology:1.03 - Other scientific articles
Organization:FS - Faculty of Mechanical Engineering
Abstract:Namen prispevka je predstaviti analizo kavitacijskih tokovnih razmer okoli lopatičnega profila NACA. Predstavljen je fizikalno-matematični model v obliki Navier-Stokesovih enačb, zapisanih za fizikalne lastnosti zmesi voda - para in na podlagi prenosne enačbe za ohranitev mase vodne pare, s katero je bil modeliran nastanek, razsirjanje in izginjanje vodne pare v toku zmesi. Pri modeliranju fazne spremembe je bila uporabljena poenostavljena Rayleigh-Plessetova enačba, v kateri so upostevani parametri, ki pomembneje vplivajo na dinamiko tokovnih pojavov v bližini osamljenega krogelnega parnega mehurčka v obdajajoči kapljevini. Matematično fizikalni model je bil vključen v programski paket CFX 5.6, rezultati pa primerjani z rezultati preizkusa, izvedenega v kavitacijskem tunelu.
Publisher:Association of Mechanical Engineers and Technicians of Slovenia et al.
Year of publishing:2005
Number of pages:str. 103-118
Numbering:Letn. 51, št. 2
PID:20.500.12556/DKUM-53007 New window
UDC:621.224:532.528
ISSN on article:0039-2480
COBISS.SI-ID:8153627 New window
NUK URN:URN:SI:UM:DK:LNREKGAH
Publication date in DKUM:10.07.2015
Views:929
Downloads:49
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
BILUŠ, Ignacijo, ŠKERGET, Leopold, PREDIN, Andrej and HRIBERŠEK, Matjaž, 2005, Eksperimentalno numerična analiza kavitacijskega toka okoli lopatičnega profila. Strojniški vestnik [online]. 2005. Vol. 51, no. 2, p. 103–118. [Accessed 17 March 2025]. Retrieved from: http://www.dlib.si/details/URN:NBN:SI:doc-9E19Z9VM
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Record is a part of a journal

Title:Strojniški vestnik
Shortened title:Stroj. vestn.
Publisher:Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.]
ISSN:0039-2480
COBISS.SI-ID:762116 New window

Secondary language

Language:English
Title:Experimental and numerical analysis of the cavitational flows around a hydrofoil
Abstract:In this paper we present an analysis of the cavitation flow conditions around a NACA hydrofoil. The mathematical model, in the form of Navier Stokes equations, based on the additional transport equation for vapour mass fraction inception, propagation and condensation is presented for the mixture's (water - water vapour) properties. A simplified Rayleigh-Plesset equation is used when the phase change is modelled, where the parameters that influence the flow dynamics near the individual spherical bubble, surrounded by the liquid, are considered. Mathematical/physical model is included in the CFD code CFX 5.6. Simulation results are compared with experimental results from the cavitation tunnel, where the tested hydrofoil (blade) was placed.
Keywords:turbine blades, cavitation flow, water turbine flow analysis, numerical simulations


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