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alphaEqn.H
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alphaEqn.H
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
{
word scheme("div(phi,alpha)");
word schemer("div(phir,alpha)");
surfaceScalarField phic("phic", phi);
surfaceScalarField phir("phir", phia - phib);
for (int acorr=0; acorr<nAlphaCorr; acorr++)
{
alpha.correctBoundaryConditions();
fvScalarMatrix alphaEqn
(
fvm::ddt(alpha)
+ fvm::div(phic, alpha, scheme)
+ fvm::div(-fvc::flux(-phir, (1.0-alpha), schemer), alpha, schemer)
);
alphaEqn.relax();
alphaEqn.solve();
if (packingLimiter)
{
int i=0;
while (i<100 && max(alpha).value()>=alphaMax.value())
{
#include "packingLimiter.H"
i++;
}
}
alpha.min(alphaMax);
alpha.max(0);
beta = scalar(1.0) - alpha;
if (debugInfo)
{
Info<< "Dispersed phase volume fraction = "
<< alpha.weightedAverage(mesh.V()).value()
<< " Min(alpha) = " << gMin(alpha)
<< " Max(alpha) = " << gMax(alpha)
<< endl;
}
}
}
rho = alpha*rhoa + beta*rhob;