sigmaRadial.C

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    Copyright (C) 2011-2015 OpenFOAM Foundation
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License
    This file is part of OpenFOAM.

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#include "sigmaRadial.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace extrudeModels
{

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

defineTypeNameAndDebug(sigmaRadial, 0);

addToRunTimeSelectionTable(extrudeModel, sigmaRadial, dictionary);


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

sigmaRadial::sigmaRadial(const dictionary& dict)
:
    extrudeModel(typeName, dict),
    RTbyg_(coeffDict_.get<scalar>("RTbyg")),
    pRef_(coeffDict_.get<scalar>("pRef")),
    pStrat_(coeffDict_.get<scalar>("pStrat"))
{
    if (mag(expansionRatio() - 1.0) > SMALL)
    {
        WarningInFunction
            << "Ignoring expansionRatio setting." << endl;
    }
}


// * * * * * * * * * * * * * * * * Operators * * * * * * * * * * * * * * * * //

point sigmaRadial::operator()
(
    const point& surfacePoint,
    const vector& surfaceNormal,
    const label layer
) const
{
    // radius of the surface
    scalar rs = mag(surfacePoint);
    vector rsHat = surfacePoint/rs;

    scalar p = pRef_ - layer*(pRef_ - pStrat_)/nLayers_;
    scalar r = rs - RTbyg_*log(p/pRef_);

    return r*rsHat;
}


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

} // End namespace extrudeModels
} // End namespace Foam

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