eddyDissipationDiffusionModel.C

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    Copyright (C) 2016-2019 OpenCFD Ltd
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License
 
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#include "eddyDissipationDiffusionModel.H"
 
namespace Foam
{
namespace combustionModels
{
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class ReactionThermo, class ThermoType>
eddyDissipationDiffusionModel<ReactionThermo, ThermoType>::
eddyDissipationDiffusionModel
(
    const word& modelType,
    ReactionThermo& thermo,
    const compressibleTurbulenceModel& turb,
    const word& combustionProperties
)
:
    eddyDissipationModelBase<ReactionThermo, ThermoType>
    (
        modelType,
        thermo,
        turb,
        combustionProperties
    ),
    Cd_(this->coeffs().getScalar("Cd"))
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
template<class ReactionThermo, class ThermoType>
eddyDissipationDiffusionModel<ReactionThermo, ThermoType>::
~eddyDissipationDiffusionModel()
{}
 
 
// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
 
template<class ReactionThermo, class ThermoType>
Foam::tmp<Foam::volScalarField>
eddyDissipationDiffusionModel<ReactionThermo, ThermoType>::timeScale()
{
    return (max(this->rtTurb(), this->rtDiff()));
}
 
 
template<class ReactionThermo, class ThermoType>
Foam::tmp<Foam::volScalarField>
eddyDissipationDiffusionModel<ReactionThermo, ThermoType>::rtDiff() const
{
    auto tdelta = volScalarField::New
    (
        "tdelta",
        IOobject::NO_REGISTER,
        this->mesh(),
        dimensionedScalar(dimLength, Zero),
        fvPatchFieldBase::zeroGradientType()
    );
    auto& delta = tdelta.ref();
 
    delta.ref() = cbrt(this->mesh().V());
    delta.correctBoundaryConditions();
 
    // NOTE: Assume Prt = 1
    return Cd_*this->turbulence().nuEff()/sqr(delta);
}
 
 
template<class ReactionThermo, class ThermoType>
bool eddyDissipationDiffusionModel<ReactionThermo, ThermoType>::read()
{
    if (eddyDissipationModelBase<ReactionThermo, ThermoType>::read())
    {
        this->coeffs().readEntry("Cd", Cd_);
        return true;
    }
 
    return false;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace combustionModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //