203 lines
6.2 KiB
C
203 lines
6.2 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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Application
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elasticThermalSolidFoam
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Description
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Transient/steady-state segregated finite-volume solver for small strain
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elastic thermal solid bodies. Temperature is solved and then coupled
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displacement is solved.
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Displacement field U is solved for using a total Lagrangian approach,
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also generating the strain tensor field epsilon and stress tensor
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field sigma and temperature field T.
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Author
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Philip Cardiff UCD
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "constitutiveModel.H"
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#include "thermalModel.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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# include "createFields.H"
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# include "readDivSigmaExpMethod.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Info<< "\nStarting time loop\n" << endl;
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while(runTime.loop())
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{
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Info<< "Time = " << runTime.timeName() << nl << endl;
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# include "readSolidMechanicsControls.H"
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int iCorr = 0;
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scalar initialResidual = 1.0;
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scalar relResT = 1.0;
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scalar relResU = 1.0;
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lduSolverPerformance solverPerfU;
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lduSolverPerformance solverPerfT;
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lduMatrix::debug = 0;
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// solve energy equation for temperature
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// the loop is for non-orthogonal corrections
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Info<< "Solving for " << T.name() << nl;
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do
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{
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T.storePrevIter();
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fvScalarMatrix TEqn
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(
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rhoC*fvm::ddt(T) == fvm::laplacian(k, T, "laplacian(k,T)")
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);
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solverPerfT = TEqn.solve();
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T.relax();
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# include "calculateRelResT.H"
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if (iCorr % infoFrequency == 0)
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{
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Info<< "\tCorrector " << iCorr
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<< ", residual = " << solverPerfT.initialResidual()
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<< ", relative res = " << relResT
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<< ", inner iters = " << solverPerfT.nIterations() << endl;
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}
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}
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while
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(
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relResT > convergenceToleranceT
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&& ++iCorr < nCorr
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);
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Info<< "Solved for " << T.name()
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<< " using " << solverPerfT.solverName()
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<< " in " << iCorr << " iterations"
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<< ", residual = " << solverPerfT.initialResidual()
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<< ", relative res = " << relResT << nl
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<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
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<< ", ClockTime = " << runTime.elapsedClockTime() << " s"
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<< endl;
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// Solve momentum equation for displacement
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iCorr = 0;
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volVectorField gradThreeKalphaDeltaT =
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fvc::grad(threeKalpha*(T-T0), "grad(threeKalphaDeltaT)");
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surfaceVectorField threeKalphaDeltaTf =
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mesh.Sf()*threeKalphaf*fvc::interpolate(T-T0, "deltaT");
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Info<< "Solving for " << U.name() << nl;
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do
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{
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U.storePrevIter();
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# include "calculateDivSigmaExp.H"
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// Linear momentum equaiton
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fvVectorMatrix UEqn
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(
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rho*fvm::d2dt2(U)
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==
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fvm::laplacian(2*muf + lambdaf, U, "laplacian(DU,U)")
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+ divSigmaExp
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);
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solverPerfU = UEqn.solve();
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if (aitkenRelax)
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{
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# include "aitkenRelaxation.H"
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}
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else
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{
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U.relax();
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}
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gradU = fvc::grad(U);
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# include "calculateRelResU.H"
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if (iCorr == 0)
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{
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initialResidual = solverPerfU.initialResidual();
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}
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if (iCorr % infoFrequency == 0)
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{
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Info<< "\tCorrector " << iCorr
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<< ", residual = " << solverPerfU.initialResidual()
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<< ", relative res = " << relResU;
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if (aitkenRelax)
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{
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Info << ", aitken = " << aitkenTheta;
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}
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Info<< ", inner iters = " << solverPerfU.nIterations() << endl;
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}
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}
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while
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(
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iCorr++ == 0
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|| (
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relResU > convergenceToleranceU
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&& iCorr < nCorr
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)
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);
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Info<< "Solved for " << U.name()
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<< " using " << solverPerfU.solverName()
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<< " in " << iCorr << " iterations"
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<< ", initial res = " << initialResidual
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<< ", final res = " << solverPerfU.initialResidual()
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<< ", final rel res = " << relResU << nl
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<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
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<< ", ClockTime = " << runTime.elapsedClockTime() << " s"
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<< endl;
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# include "calculateEpsilonSigma.H"
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# include "writeFields.H"
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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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