AnisothermalPhaseModel.C

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    Copyright (C) 2020 OpenCFD Ltd.
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#include "AnisothermalPhaseModel.H"
#include "phaseSystem.H"
 
// * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * * //
 
template<class BasePhaseModel>
Foam::tmp<Foam::volScalarField>
Foam::AnisothermalPhaseModel<BasePhaseModel>::filterPressureWork
(
    const tmp<volScalarField>& pressureWork
) const
{
    const volScalarField& alpha = *this;
 
    const scalar pressureWorkAlphaLimit =
        this->thermo_->getOrDefault("pressureWorkAlphaLimit", scalar(0));
 
    if (pressureWorkAlphaLimit > 0)
    {
        return
        (
            max(alpha - pressureWorkAlphaLimit, scalar(0))
           /max(alpha - pressureWorkAlphaLimit, pressureWorkAlphaLimit)
        )*pressureWork;
    }
 
    return pressureWork;
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class BasePhaseModel>
Foam::AnisothermalPhaseModel<BasePhaseModel>::AnisothermalPhaseModel
(
    const phaseSystem& fluid,
    const word& phaseName,
    const label index
)
:
    BasePhaseModel(fluid, phaseName, index)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
template<class BasePhaseModel>
Foam::AnisothermalPhaseModel<BasePhaseModel>::~AnisothermalPhaseModel()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class BasePhaseModel>
void Foam::AnisothermalPhaseModel<BasePhaseModel>::correctThermo()
{
    BasePhaseModel::correctThermo();
 
    this->thermo_->correct();
}
 
 
template<class BasePhaseModel>
bool Foam::AnisothermalPhaseModel<BasePhaseModel>::isothermal() const
{
    return false;
}
 
 
template<class BasePhaseModel>
Foam::tmp<Foam::fvScalarMatrix>
Foam::AnisothermalPhaseModel<BasePhaseModel>::heEqn()
{
    const volScalarField& alpha = *this;
 
    const volVectorField U(this->U());
    const surfaceScalarField alphaPhi(this->alphaPhi());
    const surfaceScalarField alphaRhoPhi(this->alphaRhoPhi());
 
    const volScalarField contErr(this->continuityError());
    const volScalarField K(this->K());
 
    volScalarField& he = this->thermo_->he();
 
    tmp<fvScalarMatrix> tEEqn
    (
        fvm::ddt(alpha, this->rho(), he)
      + fvm::div(alphaRhoPhi, he)
      - fvm::Sp(contErr, he)
 
      + fvc::ddt(alpha, this->rho(), K) + fvc::div(alphaRhoPhi, K)
      - contErr*K
 
      - fvm::laplacian
        (
            fvc::interpolate(alpha)
           *fvc::interpolate(this->alphaEff()),
            he
        )
     ==
        alpha*this->Qdot()
    );
 
    // Add the appropriate pressure-work term
    if (he.name() == this->thermo_->phasePropertyName("e"))
    {
        tEEqn.ref() += filterPressureWork
        (
            fvc::div(fvc::absolute(alphaPhi, alpha, U), this->thermo().p())
          + this->thermo().p()*fvc::ddt(alpha)
        );
    }
    else if (this->thermo_->dpdt())
    {
        tEEqn.ref() -= filterPressureWork(alpha*this->fluid().dpdt());
    }
 
    return tEEqn;
}
 
 
// ************************************************************************* //