125 lines
3.9 KiB
C
125 lines
3.9 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 3.2
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "Kunz.H"
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#include "addToRunTimeSelectionTable.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace phaseChangeTwoPhaseMixtures
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{
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defineTypeNameAndDebug(Kunz, 0);
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addToRunTimeSelectionTable(phaseChangeTwoPhaseMixture, Kunz, components);
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}
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::phaseChangeTwoPhaseMixtures::Kunz::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
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)
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:
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phaseChangeTwoPhaseMixture(typeName, U, phi, alpha1Name),
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UInf_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("UInf")),
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tInf_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("tInf")),
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Cc_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("Cc")),
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Cv_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("Cv")),
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p0_("0", pSat().dimensions(), 0.0),
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mcCoeff_(Cc_*rho2()/tInf_),
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mvCoeff_(Cv_*rho2()/(0.5*rho1()*sqr(UInf_)*tInf_))
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{
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correct();
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}
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// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
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Foam::Pair<Foam::tmp<Foam::volScalarField> >
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Foam::phaseChangeTwoPhaseMixtures::Kunz::mDotAlphal() const
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{
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const volScalarField& p = alpha1_.db().lookupObject<volScalarField>("p");
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volScalarField limitedAlpha1 = min(max(alpha1_, scalar(0)), scalar(1));
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return Pair<tmp<volScalarField> >
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(
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mcCoeff_*sqr(limitedAlpha1)
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*max(p - pSat(), p0_)/max(p - pSat(), 0.01*pSat()),
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mvCoeff_*min(p - pSat(), p0_)
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);
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}
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Foam::Pair<Foam::tmp<Foam::volScalarField> >
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Foam::phaseChangeTwoPhaseMixtures::Kunz::mDotP() const
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{
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const volScalarField& p = alpha1_.db().lookupObject<volScalarField>("p");
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volScalarField limitedAlpha1 = min(max(alpha1_, scalar(0)), scalar(1));
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return Pair<tmp<volScalarField> >
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(
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mcCoeff_*sqr(limitedAlpha1)*(1.0 - limitedAlpha1)
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*pos(p - pSat())/max(p - pSat(), 0.01*pSat()),
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(-mvCoeff_)*limitedAlpha1*neg(p - pSat())
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);
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}
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void Foam::phaseChangeTwoPhaseMixtures::Kunz::correct()
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{}
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bool Foam::phaseChangeTwoPhaseMixtures::Kunz::read()
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{
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if (phaseChangeTwoPhaseMixture::read())
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{
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phaseChangeTwoPhaseMixtureCoeffs_ = subDict(type() + "Coeffs");
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phaseChangeTwoPhaseMixtureCoeffs_.lookup("UInf") >> UInf_;
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phaseChangeTwoPhaseMixtureCoeffs_.lookup("tInf") >> tInf_;
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phaseChangeTwoPhaseMixtureCoeffs_.lookup("Cc") >> Cc_;
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phaseChangeTwoPhaseMixtureCoeffs_.lookup("Cv") >> Cv_;
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mcCoeff_ = Cc_*rho2()/tInf_;
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mvCoeff_ = Cv_*rho2()/(0.5*rho1()*sqr(UInf_)*tInf_);
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return true;
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}
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else
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{
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return false;
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}
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}
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// ************************************************************************* //
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