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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v39.i2.60
pages 160-169

CFD Simulation and Grid Study of a Cavitating Orifice Flow

M. Fuchs
Aalen University of Applied Sciences, Aalen, Germany
Winfried Waidmann
University of Applied Sciences Aalen, Department of Mechanical Engineering, Aalen, Germany
Martin Macdonald
Glasgow Caledonian University, School of Engineering and Computing Glasgow, United Kingdom

Краткое описание

A cavitating flow through an orifice is investigated by the use of computational fluid dynamics (CFD) with an ANSYS CFX solver. Turbulence is described by the Menter shear stress transport (SST) model, mass transfer due to cavitation by the Rayleigh−Plesset based default cavitation model. A grid study following the best practice guidelines known from literature has shown as not sufficient enough for the simulation of a cavitating flow. When refining the grid monitor values e. g. the mass flow rate reached convergence at a certain amount of elements, whereas the cavitation zones itself changed in shape and location until a significantly high resolution is reached. The SST turbulence model calculates the boundary layer with a wall function approach at high YPLUS values and resolves it at small YPLUS values. The accuracy of the simulation was increased by avoiding the use of the wall function approach.


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