137 lines
3.7 KiB
C
137 lines
3.7 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.0
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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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Application
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viscoelasticFluidFoam
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Description
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Transient solver for incompressible, laminar flow of viscoelastic fluids.
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Author
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Jovani L. Favero and Hrvoje Jasak. All rights reserved
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "viscoelasticModel.H"
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#include "pisoControl.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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# include "setRootCase.H"
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# include "createTime.H"
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# include "createMesh.H"
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pisoControl piso(mesh);
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# include "createFields.H"
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# include "initContinuityErrs.H"
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# include "createTimeControls.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Info<< "\nStarting time loop\n" << endl;
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while (runTime.run())
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{
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# include "readTimeControls.H"
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# include "CourantNo.H"
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# include "setDeltaT.H"
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runTime++;
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Info<< "Time = " << runTime.timeName() << nl << endl;
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// Pressure-velocity SIMPLE corrector loop
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while (piso.correct())
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{
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// Momentum predictor
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tmp<fvVectorMatrix> UEqn
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(
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fvm::ddt(U)
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+ fvm::div(phi, U)
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- visco.divTau(U)
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);
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UEqn().relax();
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solve(UEqn() == -fvc::grad(p));
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volScalarField rUA = 1.0/UEqn().A();
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U = rUA*UEqn().H();
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UEqn.clear();
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phi = fvc::interpolate(U) & mesh.Sf();
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adjustPhi(phi, U, p);
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// Store pressure for under-relaxation
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p.storePrevIter();
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// Non-orthogonal pressure corrector loop
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while (piso.correctNonOrthogonal())
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{
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fvScalarMatrix pEqn
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(
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fvm::laplacian(rUA, p) == fvc::div(phi)
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);
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pEqn.setReference(pRefCell, pRefValue);
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pEqn.solve();
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if (piso.finalNonOrthogonalIter())
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{
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phi -= pEqn.flux();
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}
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}
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# include "continuityErrs.H"
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// Explicitly relax pressure for momentum corrector
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p.relax();
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// Momentum corrector
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U -= rUA*fvc::grad(p);
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U.correctBoundaryConditions();
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visco.correct();
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}
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runTime.write();
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Info<< "ExecutionTime = "
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<< runTime.elapsedCpuTime()
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<< " s\n\n" << endl;
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}
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Info<< "End\n" << endl;
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return(0);
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}
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// ************************************************************************* //
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