179 lines
5.4 KiB
C++
179 lines
5.4 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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surfaceTractions
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Description
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Calculates and writes the surface tractions as a volVectorField, using
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the sigma volSymmTensorField
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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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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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Foam::argList::validOptions.insert("nonLinear", "");
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# include "addTimeOptions.H"
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# include "setRootCase.H"
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# include "createTime.H"
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bool nonLinear = args.optionFound("nonLinear");
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// Get times list
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instantList Times = runTime.times();
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// set startTime and endTime depending on -time and -latestTime options
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# include "checkTimeOptions.H"
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runTime.setTime(Times[startTime], startTime);
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# include "createMesh.H"
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for (label i=startTime; i<endTime; i++)
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{
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runTime.setTime(Times[i], i);
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Info<< "Time = " << runTime.timeName() << endl;
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mesh.readUpdate();
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IOobject sigmaheader
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(
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"sigma",
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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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// Check sigma exists
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if (sigmaheader.headerOk())
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{
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mesh.readUpdate();
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Info<< " Reading sigma" << endl;
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volSymmTensorField sigma(sigmaheader, mesh);
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surfaceVectorField n = mesh.Sf()/mesh.magSf();
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volVectorField totalTraction
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(
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IOobject
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(
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"totalTraction",
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runTime.timeName(),
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mesh,
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IOobject::NO_READ,
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IOobject::AUTO_WRITE
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),
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mesh,
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dimensionedVector("zero", dimForce/dimArea, vector::zero)
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);
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volScalarField normalTraction
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(
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IOobject
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(
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"normalTraction",
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runTime.timeName(),
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mesh,
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IOobject::NO_READ,
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IOobject::AUTO_WRITE
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),
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mesh,
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dimensionedScalar("zero", dimForce/dimArea, 0.0)
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);
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volVectorField shearTraction
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(
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IOobject
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(
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"shearTraction",
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runTime.timeName(),
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mesh,
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IOobject::NO_READ,
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IOobject::AUTO_WRITE
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),
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mesh,
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dimensionedVector("zero", dimForce/dimArea, vector::zero)
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);
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volTensorField* gradUPtr = NULL;
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if (nonLinear)
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{
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gradUPtr = new volTensorField
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(
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IOobject
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(
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"grad(U)",
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runTime.timeName(),
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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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mesh
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);
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}
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forAll(totalTraction.boundaryField(), patchi)
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{
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const vectorField& nb = n.boundaryField()[patchi];
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const symmTensorField& sigmab = sigma.boundaryField()[patchi];
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if (nonLinear)
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{
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tensorField F = I + gradUPtr->boundaryField()[patchi];
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totalTraction.boundaryField()[patchi] = nb & (sigmab & F);
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}
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else
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{
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totalTraction.boundaryField()[patchi] = nb & sigmab;
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}
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normalTraction.boundaryField()[patchi] =
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nb & totalTraction.boundaryField()[patchi];
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shearTraction.boundaryField()[patchi] =
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(I -sqr(nb)) & totalTraction.boundaryField()[patchi];
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}
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totalTraction.write();
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normalTraction.write();
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shearTraction.write();
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}
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else
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{
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Info<< " No sigma field" << endl;
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}
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Info<< endl;
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}
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Info<< "End" << endl;
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return(0);
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}
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// ************************************************************************* //
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