laminar.C

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    Copyright (C) 2013-2017 OpenFOAM Foundation
    Copyright (C) 2019-2020 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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    the Free Software Foundation, either version 3 of the License, or
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "laminar.H"
#include "fvmSup.H"
#include "localEulerDdtScheme.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class ReactionThermo>
Foam::combustionModels::laminar<ReactionThermo>::laminar
(
    const word& modelType,
    ReactionThermo& thermo,
    const compressibleTurbulenceModel& turb,
    const word& combustionProperties
)
:
    ChemistryCombustion<ReactionThermo>
    (
        modelType,
        thermo,
        turb,
        combustionProperties
    ),
    integrateReactionRate_
    (
        this->coeffs().getOrDefault("integrateReactionRate", true)
    )
{
    if (integrateReactionRate_)
    {
        Info<< "    using integrated reaction rate" << endl;
    }
    else
    {
        Info<< "    using instantaneous reaction rate" << endl;
    }
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
template<class ReactionThermo>
Foam::combustionModels::laminar<ReactionThermo>::~laminar()
{}
 
 
// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
template<class ReactionThermo>
Foam::tmp<Foam::volScalarField>
Foam::combustionModels::laminar<ReactionThermo>::tc() const
{
    return this->chemistryPtr_->tc();
}
 
 
template<class ReactionThermo>
void Foam::combustionModels::laminar<ReactionThermo>::correct()
{
    if (this->active())
    {
        if (integrateReactionRate_)
        {
            if (fv::localEulerDdt::enabled(this->mesh()))
            {
                const scalarField& rDeltaT =
                    fv::localEulerDdt::localRDeltaT(this->mesh());
 
                scalar maxTime;
                if (this->coeffs().readIfPresent("maxIntegrationTime", maxTime))
                {
                    this->chemistryPtr_->solve
                    (
                        min(1.0/rDeltaT, maxTime)()
                    );
                }
                else
                {
                    this->chemistryPtr_->solve((1.0/rDeltaT)());
                }
            }
            else
            {
                this->chemistryPtr_->solve(this->mesh().time().deltaTValue());
            }
        }
        else
        {
            this->chemistryPtr_->calculate();
        }
    }
}
 
 
template<class ReactionThermo>
Foam::tmp<Foam::fvScalarMatrix>
Foam::combustionModels::laminar<ReactionThermo>::R(volScalarField& Y) const
{
    tmp<fvScalarMatrix> tSu(new fvScalarMatrix(Y, dimMass/dimTime));
 
    fvScalarMatrix& Su = tSu.ref();
 
    if (this->active())
    {
        const label specieI =
            this->thermo().composition().species()[Y.member()];
 
        Su += this->chemistryPtr_->RR(specieI);
    }
 
    return tSu;
}
 
 
template<class ReactionThermo>
Foam::tmp<Foam::volScalarField>
Foam::combustionModels::laminar<ReactionThermo>::Qdot() const
{
    tmp<volScalarField> tQdot
    (
        new volScalarField
        (
            IOobject
            (
                this->thermo().phasePropertyName(typeName + ":Qdot"),
                this->mesh().time().timeName(),
                this->mesh(),
                IOobject::NO_READ,
                IOobject::NO_WRITE,
                false
            ),
            this->mesh(),
            dimensionedScalar(dimEnergy/dimVolume/dimTime, Zero)
        )
    );
 
    if (this->active())
    {
        tQdot.ref() = this->chemistryPtr_->Qdot();
    }
 
    return tQdot;
}
 
 
template<class ReactionThermo>
bool Foam::combustionModels::laminar<ReactionThermo>::read()
{
    if (ChemistryCombustion<ReactionThermo>::read())
    {
        integrateReactionRate_ =
            this->coeffs().getOrDefault("integrateReactionRate", true);
        return true;
    }
 
    return false;
}
 
 
// ************************************************************************* //