piecewiseLinearRamp.C

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    Copyright (C) 2012-2015 OpenFOAM Foundation
    Copyright (C) 2018 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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#include "piecewiseLinearRamp.H"
#include "addToRunTimeSelectionTable.H"

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

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

namespace Foam
{
    defineTypeNameAndDebug(piecewiseLinearRamp, 0);
    addToRunTimeSelectionTable
    (
        faceAreaWeightModel,
        piecewiseLinearRamp,
        dictionary
    );
}


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

Foam::piecewiseLinearRamp::piecewiseLinearRamp
(
    const dictionary& faceAreaWeightDict
)
:
    faceAreaWeightModel(typeName, faceAreaWeightDict),
    lAF_(coeffDict().get<scalar>("lowerAreaFraction")),
    uAF_(coeffDict().get<scalar>("upperAreaFraction"))
{}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

Foam::scalar
Foam::piecewiseLinearRamp::faceAreaWeight(scalar faceAreaFraction) const
{
    if (faceAreaFraction < lAF_)
    {
        return 0;
    }
    else if (faceAreaFraction < uAF_)
    {
        return faceAreaFraction/((uAF_ - lAF_)) - lAF_/(uAF_ - lAF_);
    }

    return 1;
}


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