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foam-extend4.1-coherent-io/tutorials/basic/scalarTransportFoam/swirlTest/setSwirl/setSwirl.C

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright held by original author
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM; if not, write to the Free Software Foundation,
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Description
Set up the velocity field
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
# include "setRootCase.H"
# include "createTime.H"
# include "createMesh.H"
Info<< "Time = " << runTime.value() << endl;
Info<< " Reading U" << endl;
volVectorField U
(
IOobject
(
"U",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE
),
mesh
);
// Do cells
const volVectorField& centres = mesh.C();
point origin(1, 1, 0.05);
vector axis(0, 0, -1);
U.internalField() = axis ^ (centres.internalField() - origin);
U.boundaryField()[0] == (axis ^ (centres.boundaryField()[0] - origin));
U.boundaryField()[1] == (axis ^ (centres.boundaryField()[1] - origin));
U.boundaryField()[2] == (axis ^ (centres.boundaryField()[2] - origin));
U.write();
Info<< "End\n" << endl;
return(0);
}
// ************************************************************************* //