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                    \\     ||  | Multiphase Code Repository by HZDR
  ======   //   ||  || ===//   | Website: https://doi.org/10.14278/rodare.767
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    Website: https://hzdr.de

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#include "polynomialBlendout.H"
#include "addToRunTimeSelectionTable.H"

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

namespace Foam
{
namespace swarmCorrections
{
    defineTypeNameAndDebug(polynomialBlendout, 0);
    addToRunTimeSelectionTable
    (
        swarmCorrection,
        polynomialBlendout,
        dictionary
    );
}
}


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

Foam::swarmCorrections::polynomialBlendout::polynomialBlendout
(
    const dictionary& dict,
    const phaseInterface& interface
)
:
    swarmCorrection(dict, interface),
    alphaOnset_(dict.lookupOrDefault<scalar>("alphaOnset", dimless, 0.5)),
    range_(dict.lookupOrDefault<scalar>("range", dimless, 0.1)),
    residualValue_(dict.lookupOrDefault<scalar>("residualValue_", dimless, 0.1))
{}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::swarmCorrections::polynomialBlendout::~polynomialBlendout()
{}


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

Foam::tmp<Foam::volScalarField>
Foam::swarmCorrections::polynomialBlendout::Cs() const
{
    const volScalarField alphaTilde
    (
        min
        (
            max
            (
                (interface_.dispersed() - alphaOnset_)/(range_*alphaOnset_),
                Zero
            ),
            scalar(1.0)
        )
    );

    return
        (2 - 2*residualValue_)*pow3(alphaTilde)
      + (3*residualValue_ - 3)*sqr(alphaTilde)
      + 1;
}


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