foam-extend4.1-coherent-io/tutorials/basic/PODSolver/1DPODsin/setTcos/setTcos.C

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     4.0
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
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License
    This file is part of foam-extend.

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    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.

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Description
    Set up the gamma field

\*---------------------------------------------------------------------------*/

#include "fvCFD.H"
#include "mathematicalConstants.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

int main(int argc, char *argv[])
{

#   include "setRootCase.H"
#   include "createTime.H"
#   include "createMesh.H"

    Info<< "Time = " << runTime.value() << endl;

    Info<< "    Reading field T" << endl;
    volScalarField T
    (
        IOobject
        (
            "T",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ,
            IOobject::NO_WRITE
        ),
        mesh
    );

    // Do cells
    const volVectorField& centres = mesh.C();

    Info << pos(0.02 - centres.internalField().component(vector::X))*
            centres.internalField().component(vector::X)/0.02 << endl;
    T.internalField() =
        pos(0.02 - centres.internalField().component(vector::X))*
        (
            Foam::cos
            (
                centres.internalField().component(vector::X)/0.02*
                mathematicalConstant::pi
            )/2.0 + 0.5
        );

    T.write();

    Info<< "End\n" << endl;

    return(0);
}


// ************************************************************************* //