133 lines
3.4 KiB
C
133 lines
3.4 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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estimateScalarError
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Description
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Estimates the error in the solution for a scalar transport equation in the
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standard form
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "errorEstimate.H"
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#include "resError.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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timeSelector::addOptions();
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# include "setRootCase.H"
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# include "createTime.H"
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instantList timeDirs = timeSelector::select0(runTime, args);
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# include "createMesh.H"
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Info<< "\nEstimating error in scalar transport equation\n"
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<< "Reading transportProperties\n" << endl;
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IOdictionary transportProperties
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(
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IOobject
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(
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"transportProperties",
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runTime.constant(),
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mesh,
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IOobject::MUST_READ,
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IOobject::NO_WRITE
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)
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);
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Info<< "Reading diffusivity DT\n" << endl;
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dimensionedScalar DT
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(
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transportProperties.lookup("DT")
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);
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forAll(timeDirs, timeI)
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{
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runTime.setTime(timeDirs[timeI], timeI);
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Info<< "Time = " << runTime.timeName() << endl;
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mesh.readUpdate();
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IOobject THeader
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(
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"T",
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runTime.timeName(),
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mesh,
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IOobject::MUST_READ
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);
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IOobject Uheader
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(
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"U",
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runTime.timeName(),
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mesh,
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IOobject::MUST_READ
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);
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if (THeader.headerOk() && Uheader.headerOk())
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{
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Info << "Reading T" << endl;
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volScalarField T(THeader, mesh);
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Info << "Reading U" << endl;
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volVectorField U(Uheader, mesh);
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# include "createPhi.H"
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errorEstimate<scalar> ee
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(
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resError::div(phi, T)
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- resError::laplacian(DT, T)
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);
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ee.residual()().write();
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volScalarField e = ee.error();
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e.write();
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mag(e)().write();
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}
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else
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{
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Info<< " No T or U" << endl;
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}
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Info<< 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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