lumpedMassWallTemperatureFvPatchScalarField.C

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License
    This file is part of OpenFOAM.

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#include "lumpedMassWallTemperatureFvPatchScalarField.H"
#include "addToRunTimeSelectionTable.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "mappedPatchBase.H"

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

Foam::lumpedMassWallTemperatureFvPatchScalarField::
lumpedMassWallTemperatureFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF
)
:
    parent_bctype(p, iF),
    temperatureCoupledBase(patch()),  // default method (fluidThermo)
    Cp_(0.0),
    mass_(0.0),
    curTimeIndex_(-1)
{
    refValue() = 0.0;
    refGrad() = 0.0;
    valueFraction() = 1.0;
}


Foam::lumpedMassWallTemperatureFvPatchScalarField::
lumpedMassWallTemperatureFvPatchScalarField
(
    const this_bctype& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    parent_bctype(ptf, p, iF, mapper),
    temperatureCoupledBase(patch(), ptf),
    Cp_(ptf.Cp_),
    mass_(ptf.mass_),
    curTimeIndex_(-1)
{}


Foam::lumpedMassWallTemperatureFvPatchScalarField::
lumpedMassWallTemperatureFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    parent_bctype(p, iF),
    temperatureCoupledBase(patch(), dict),
    Cp_(dict.get<scalar>("Cp")),
    mass_(dict.get<scalar>("mass")),
    curTimeIndex_(-1)
{
    fvPatchFieldBase::readDict(dict);
    this->readValueEntry(dict, IOobjectOption::MUST_READ);
    refValue() = *this;
    refGrad() = Zero;
    valueFraction() = 1.0;
}


Foam::lumpedMassWallTemperatureFvPatchScalarField::
lumpedMassWallTemperatureFvPatchScalarField
(
    const this_bctype& tppsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    parent_bctype(tppsf, iF),
    temperatureCoupledBase(patch(), tppsf),
    Cp_(tppsf.Cp_),
    mass_(tppsf.mass_),
    curTimeIndex_(-1)
{}


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

void Foam::lumpedMassWallTemperatureFvPatchScalarField::autoMap
(
    const fvPatchFieldMapper& mapper
)
{
    this->parent_bctype::autoMap(mapper);
    temperatureCoupledBase::autoMap(mapper);
}


void Foam::lumpedMassWallTemperatureFvPatchScalarField::rmap
(
    const fvPatchField<scalar>& ptf,
    const labelList& addr
)
{
    this->parent_bctype::rmap(ptf, addr);

    const auto& tiptf = refCast<const this_bctype>(ptf);

    temperatureCoupledBase::rmap(tiptf, addr);
}


void Foam::lumpedMassWallTemperatureFvPatchScalarField::updateCoeffs()
{
    if (updated() || (curTimeIndex_ == this->db().time().timeIndex()))
    {
        return;
    }

    // Calculate heat flux in or out the wall
    scalarField& Tp(*this);
    const scalarField& magSf = patch().magSf();

    const scalar deltaT(db().time().deltaTValue());

    tmp<scalarField> tkappa(kappa(Tp));

    const scalarField q(tkappa.ref()*snGrad());

    // Total heat in or out of the wall
    const scalar Q = gWeightedSum(magSf, q);

    Tp += -(Q/mass_/Cp_)*deltaT;

    refGrad() = 0.0;
    refValue() = Tp;
    valueFraction() = 1.0;

    this->parent_bctype::updateCoeffs();

    if (debug)
    {
        scalar Qin(0);
        scalar Qout(0);

        forAll(q, facei)
        {
            if (q[facei] > 0.0) // out the wall
            {
                Qout += q[facei]*magSf[facei];
            }
            else if (q[facei] < 0.0) // into the wall
            {
                Qin += q[facei]*magSf[facei];
            }
        }

        auto limits = gMinMax(*this);
        auto avg = gAverage(*this);

        Info<< patch().boundaryMesh().mesh().name() << ':'
            << patch().name() << ':'
            << this->internalField().name() << " :"
            << " heat transfer rate:" << Q
            << " wall temperature "
            << " min:" << limits.min()
            << " max:" << limits.max()
            << " avg:" << avg
            << " Qin [W]:" << Qin
            << " Qout [W]:" << Qout
            << endl;
    }

    curTimeIndex_ = this->db().time().timeIndex();
}


void Foam::lumpedMassWallTemperatureFvPatchScalarField::write
(
    Ostream& os
) const
{
    mixedFvPatchField<scalar>::write(os);
    temperatureCoupledBase::write(os);

    os.writeEntry("Cp", Cp_);
    os.writeEntry("mass", mass_);
}


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

namespace Foam
{
    makePatchTypeField
    (
        fvPatchScalarField,
        lumpedMassWallTemperatureFvPatchScalarField
    );
}

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