combustionModel.C

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/*---------------------------------------------------------------------------*\
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    \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
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License
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#include "combustionModel.H"
#include <finiteVolume/fvm.H>

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

namespace Foam
{
    defineTypeNameAndDebug(combustionModel, 0);
    defineRunTimeSelectionTable(combustionModel, dictionary);
};


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

Foam::combustionModel::combustionModel
(
    const dictionary& combustionProperties,
    const hsCombustionThermo& thermo,
    const compressible::turbulenceModel& turbulence,
    const surfaceScalarField& phi,
    const volScalarField& rho
)
:
    combustionModelCoeffs_
    (
        combustionProperties.subDict
        (
            word(combustionProperties.lookup("combustionModel")) + "Coeffs"
        )
    ),
    thermo_(thermo),
    turbulence_(turbulence),
    mesh_(phi.mesh()),
    phi_(phi),
    rho_(rho),
    stoicRatio_(thermo.lookup("stoichiometricAirFuelMassRatio")),
    s_(thermo.lookup("stoichiometricOxygenFuelMassRatio")),
    qFuel_(thermo_.lookup("qFuel")),
    composition_(thermo.composition())
{}


// * * * * * * * * * * * * * * * * Destructors * * * * * * * * * * * * * * * //

Foam::combustionModel::~combustionModel()
{}


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

Foam::tmp<Foam::fvScalarMatrix>
Foam::combustionModel::combustionModel::R(volScalarField& fu) const
{
    const basicMultiComponentMixture& composition = thermo_.composition();
    const volScalarField& ft = composition.Y("ft");
    volScalarField fres = composition.fres(ft, stoicRatio_.value());
    volScalarField wFuelNorm = this->wFuelNorm()*pos(fu - fres);

    return wFuelNorm*fres - fvm::Sp(wFuelNorm, fu);
}


Foam::tmp<Foam::volScalarField> Foam::combustionModel::combustionModel::dQ
(
    const fvScalarMatrix& Rfu
) const
{
    const basicMultiComponentMixture& composition = thermo_.composition();
    const volScalarField& fu = composition.Y("fu");

    return (-qFuel_)*(Rfu & fu);
}


bool Foam::combustionModel::read(const dictionary& combustionProperties)
{
    combustionModelCoeffs_ = combustionProperties.subDict(type() + "Coeffs");

    return true;
}


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