OpenFOAM-12/src/finiteVolume/fields/fvPatchFields/derived/mappedFlowRateVelocity/mappedFlowRateVelocityFvPatchVectorField.C

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License
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

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\*---------------------------------------------------------------------------*/

#include "mappedFlowRateVelocityFvPatchVectorField.H"
#include "volFields.H"
#include "addToRunTimeSelectionTable.H"
#include "fvPatchFieldMapper.H"
#include "mappedPatchBase.H"
#include "surfaceFields.H"

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

Foam::mappedFlowRateVelocityFvPatchVectorField::
mappedFlowRateVelocityFvPatchVectorField
(
    const fvPatch& p,
    const DimensionedField<vector, volMesh>& iF
)
:
    fixedValueFvPatchField<vector>(p, iF),
    nbrPhiName_("none"),
    phiName_("phi"),
    rhoName_("rho")
{}


Foam::mappedFlowRateVelocityFvPatchVectorField::
mappedFlowRateVelocityFvPatchVectorField
(
    const fvPatch& p,
    const DimensionedField<vector, volMesh>& iF,
    const dictionary& dict
)
:
    fixedValueFvPatchField<vector>(p, iF, dict),
    nbrPhiName_(dict.lookupOrDefault<word>("nbrPhi", "phi")),
    phiName_(dict.lookupOrDefault<word>("phi", "phi")),
    rhoName_(dict.lookupOrDefault<word>("rho", "rho"))
{
    mappedPatchBase::validateMapForField
    (
        *this,
        iF,
        dict,
        mappedPatchBase::from::differentPatch
    );
}


Foam::mappedFlowRateVelocityFvPatchVectorField::
mappedFlowRateVelocityFvPatchVectorField
(
    const mappedFlowRateVelocityFvPatchVectorField& ptf,
    const fvPatch& p,
    const DimensionedField<vector, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    fixedValueFvPatchField<vector>(ptf, p, iF, mapper),
    nbrPhiName_(ptf.nbrPhiName_),
    phiName_(ptf.phiName_),
    rhoName_(ptf.rhoName_)
{}


Foam::mappedFlowRateVelocityFvPatchVectorField::
mappedFlowRateVelocityFvPatchVectorField
(
    const mappedFlowRateVelocityFvPatchVectorField& ptf,
    const DimensionedField<vector, volMesh>& iF
)
:
    fixedValueFvPatchField<vector>(ptf, iF),
    nbrPhiName_(ptf.nbrPhiName_),
    phiName_(ptf.phiName_),
    rhoName_(ptf.rhoName_)
{}


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

void Foam::mappedFlowRateVelocityFvPatchVectorField::updateCoeffs()
{
    if (updated())
    {
        return;
    }

    // Since we're inside initEvaluate/evaluate there might be processor
    // comms underway. Change the tag we use.
    int oldTag = UPstream::msgType();
    UPstream::msgType() = oldTag+1;

    const mappedPatchBase& mapper = mappedPatchBase::getMap(patch().patch());
    const fvMesh& nbrMesh = refCast<const fvMesh>(mapper.nbrMesh());
    const label nbrPatchi = mapper.nbrPolyPatch().index();
    const fvPatch& nbrPatch = nbrMesh.boundary()[nbrPatchi];

    const surfaceScalarField& phi =
        db().lookupObject<surfaceScalarField>(phiName_);

    const scalarField phip
    (
        mapper.distribute
        (
            nbrPatch.lookupPatchField<surfaceScalarField, scalar>(nbrPhiName_)
        )
    );

    const scalarField Unp(-phip/patch().magSf());

    const vectorField np(patch().nf());

    if (phi.dimensions() == dimFlux)
    {
        // volumetric flow-rate
        operator==(np*Unp);
    }
    else if (phi.dimensions() == dimMassFlux)
    {
        const fvPatchField<scalar>& rhop =
            patch().lookupPatchField<volScalarField, scalar>(rhoName_);

        // mass flow-rate
        operator==(np*Unp/rhop);
    }
    else
    {
        FatalErrorInFunction
            << "dimensions of " << phiName_ << " are incorrect" << nl
            << "    on patch " << this->patch().name()
            << " of field " << this->internalField().name()
            << " in file " << this->internalField().objectPath()
            << nl << exit(FatalError);
    }

    // Restore tag
    UPstream::msgType() = oldTag;

    fixedValueFvPatchField<vector>::updateCoeffs();
}


void Foam::mappedFlowRateVelocityFvPatchVectorField::write
(
    Ostream& os
) const
{
    fvPatchField<vector>::write(os);
    writeEntryIfDifferent<word>(os, "phi", "phi", phiName_);
    writeEntryIfDifferent<word>(os, "rho", "rho", rhoName_);
    writeEntry(os, "nbrPhi", nbrPhiName_);
    writeEntry(os, "value", *this);
}


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

namespace Foam
{
   makePatchTypeField
   (
       fvPatchVectorField,
       mappedFlowRateVelocityFvPatchVectorField
   );
}


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