KochFriedlander.C

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#include "KochFriedlander.H"
#include "addToRunTimeSelectionTable.H"
#include "fvmSup.H"

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

namespace Foam
{
namespace diameterModels
{
namespace shapeModels
{
namespace sinteringModels
{
    defineTypeNameAndDebug(KochFriedlander, 0);
    addToRunTimeSelectionTable(sinteringModel, KochFriedlander, dictionary);
}
}
}
}


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

Foam::diameterModels::shapeModels::sinteringModels::KochFriedlander::
KochFriedlander
(
    const dictionary& dict,
    const fractal& fractalShape
)
:
    sinteringModel(dict, fractalShape),
    dict_(dict.subDict(type() + "Coeffs")),
    Cs_(dict_.lookup<scalar>("Cs")),
    n_(dict_.lookup<scalar>("n")),
    m_(dict_.lookup<scalar>("m")),
    Ta_(dict_.lookup<scalar>("Ta"))
{}


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

Foam::diameterModels::shapeModels::sinteringModels::KochFriedlander::
~KochFriedlander()
{}


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

Foam::tmp<Foam::volScalarField::Internal>
Foam::diameterModels::shapeModels::sinteringModels::KochFriedlander::tau() const
{
    tmp<volScalarField::Internal> tTau
    (
        volScalarField::Internal::New
        (
            "tau",
            fractal_.SizeGroup().mesh(),
            dimensionedScalar(dimTime, 0.0)
        )
    );

    volScalarField::Internal& tau = tTau.ref();

    const sizeGroup& fi = fractal_.SizeGroup();
    const volScalarField& kappai = fractal_.fld();
    const volScalarField& T = fractal_.SizeGroup().phase().thermo().T();

    forAll(tau, celli)
    {
        tau[celli] =
            Cs_*pow(6.0/max(6.0/fi.dSph().value(), kappai[celli]), n_)
           *pow(T[celli], m_)*exp(Ta_/T[celli]);
    }

    return tTau;
}


Foam::tmp<Foam::fvScalarMatrix>
Foam::diameterModels::shapeModels::sinteringModels::KochFriedlander::R() const
{
    const sizeGroup& fi = fractal_.SizeGroup();
    const volScalarField& kappai = fractal_.fld();
    const volScalarField& alpha = fi.phase();
    const volScalarField& rho = fi.phase().thermo().rho();

    volScalarField::Internal R
    (
        IOobject
        (
            "KochFriedlander:R",
            fi.time().timeName(),
            fi.mesh()
        ),
        fi.mesh(),
        dimensionedScalar(dimDensity/dimTime, 0)
    );

    volScalarField::Internal tau(this->tau());

    forAll(R, celli)
    {
        R[celli] = fi[celli]*alpha[celli]*rho[celli]/tau[celli];
    }

    return fvm::Sp(R, kappai) - 6.0/fi.dSph()*R;
}


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