70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright held by original author
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM 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 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Application
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analyticalCylinder
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Description
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Generates an analytical solution for potential flow around a cylinder.
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Can be compared with the solution from the potentialFlow/cylinder example.
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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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# 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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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Info << "\nEvaluating analytical solution" << endl;
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volVectorField centres = UA.mesh().C();
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volScalarField magCentres = mag(centres);
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volScalarField theta = acos((centres & vector(1,0,0))/magCentres);
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volVectorField cs2theta =
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cos(2*theta)*vector(1,0,0)
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+ sin(2*theta)*vector(0,1,0);
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UA = uInfX*(dimensionedVector(vector(1,0,0))
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- pow((radius/magCentres),2)*cs2theta);
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runTime.write();
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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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