adaptiveLinear.C

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    Copyright (C) 2018 OpenCFD Ltd.
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#include "adaptiveLinear.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
    defineTypeNameAndDebug(adaptiveLinear, 0);
    addToRunTimeSelectionTable(relaxationModel, adaptiveLinear, dictionary);
}

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

Foam::adaptiveLinear::adaptiveLinear
(
    const dictionary& relaxationDict,
    const Time& runTime
)
:
    relaxationModel(typeName, relaxationDict, runTime),
    relaxationStart_(coeffDict().get<scalar>("relaxationStart")),
    relaxationEnd_(coeffDict().get<scalar>("relaxationEnd")),
    lastTimeValue_(runTime_.time().timeOutputValue()),
    relaxation_(relaxationStart_)
{}


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

Foam::scalar Foam::adaptiveLinear::relaxation()
{
    if (runTime_.time().timeOutputValue() > lastTimeValue_)
    {
        scalar currentRelaxation = relaxation_;

        relaxation_ -=
            (relaxation_ - relaxationEnd_)
           /(
                (
                    runTime_.time().endTime().value()
                  - runTime_.time().timeOutputValue()
                )
               /(runTime_.time().timeOutputValue() - lastTimeValue_)
              + 1
            );

        lastTimeValue_ = runTime_.time().timeOutputValue();

        return currentRelaxation;
    }

    return relaxation_;
}


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