136 lines
4 KiB
C
136 lines
4 KiB
C
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright held by original author
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software; you can redistribute it and/or modify it
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under the terms of the GNU Generac License as published by the
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Free Software Foundation; either 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the ho it will be useful, but WITHOUT
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ANY WARRANTY; without even the imarranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE.he GNU General Public License
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for more details.
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You should have received a copy oNU General Public License
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along with OpenFOAM; if not, write Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floorn, MA 02110-1301 USA
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Class
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Foam::phaseChangeTwoPhaseMixtures::Kunz
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Description
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Kunz cavitation model slightly modified so that the condensation term
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is switched off when the pressure is less than the saturation vapour
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pressure. This change allows the condensation term to be formulated as
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a coefficient multiplying (p - p_sat) so that it can be included as an
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implicit term in the pressure equation.
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Reference:
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@verbatim
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Kunz, R.F., Boger, D.A., Stinebring, D.R., Chyczewski, Lindau. J.W.,
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Gibeling, H.J., Venkateswaran, S., Govindan, T.R.,
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“A Preconditioned Implicit Method for Two-Phase Flows with Application
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to Cavitation Prediction,”
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Computers and Fluids,
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29(8):849-875, 2000.
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@verbatim
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SourceFiles
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Kunz.C
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\*--------------------------------------------------------------------*/
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#ifndef Kunz_H
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#define Kunz_H
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#include "phaseChangeTwoPhaseMixture.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace phaseChangeTwoPhaseMixtures
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{
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/*--------------------------------------------------------------------*\
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Class Kunz
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\*--------------------------------------------------------------------*/
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class Kunz
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:
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public phaseChangeTwoPhaseMixture
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{
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// Private data
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dimensionedScalar UInf_;
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dimensionedScalar tInf_;
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dimensionedScalar Cc_;
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dimensionedScalar Cv_;
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dimensionedScalar p0_;
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dimensionedScalar mcCoeff_;
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dimensionedScalar mvCoeff_;
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public:
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//- Runtime type information
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TypeName("Kunz");
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// Constructors
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//- construct from components
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Kunz
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(
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const volVectorField& U,
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const surfaceScalarField& phi,
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const word& alpha1Name = "alpha1"
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);
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// Destructor
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virtual ~Kunz()
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{}
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// Member Functions
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//- Return the mass condensation and vaporisation rates as a
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// coefficient to multiply (1 - alphal) for the condensation rate
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// and a coefficient to multiply alphal for the vaporisation rate
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virtual Pair<tmp<volScalarField> > mDotAlphal() const;
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//- Return the mass condensation and vaporisation rates as an
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// explicit term for the condensation rate and a coefficient to
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// multiply (p - pSat) for the vaporisation rate
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virtual Pair<tmp<volScalarField> > mDotP() const;
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//- Correct the Kunz phaseChange model
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virtual void correct();
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//- Read the transportProperties dictionary and update
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virtual bool read();
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace phaseChangeTwoPhaseMixtures
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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