variableHeightFlowRateInletVelocityFvPatchVectorField.C

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#include "variableHeightFlowRateInletVelocityFvPatchVectorField.H"
#include "addToRunTimeSelectionTable.H"
#include "volFields.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
::variableHeightFlowRateInletVelocityFvPatchVectorField
(
    const fvPatch& p,
    const DimensionedField<vector, volMesh>& iF
)
:
    fixedValueFvPatchField<vector>(p, iF),
    flowRate_(),
    alphaName_("none")
{}
 
 
Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
::variableHeightFlowRateInletVelocityFvPatchVectorField
(
    const fvPatch& p,
    const DimensionedField<vector, volMesh>& iF,
    const dictionary& dict
)
:
    fixedValueFvPatchField<vector>(p, iF, dict),
    flowRate_(Function1<scalar>::New("flowRate", dict, &db())),
    alphaName_(dict.lookup("alpha"))
{}
 
 
Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
::variableHeightFlowRateInletVelocityFvPatchVectorField
(
    const variableHeightFlowRateInletVelocityFvPatchVectorField& ptf,
    const fvPatch& p,
    const DimensionedField<vector, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    fixedValueFvPatchField<vector>(ptf, p, iF, mapper),
    flowRate_(ptf.flowRate_.clone()),
    alphaName_(ptf.alphaName_)
{}
 
 
Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
::variableHeightFlowRateInletVelocityFvPatchVectorField
(
    const variableHeightFlowRateInletVelocityFvPatchVectorField& ptf
)
:
    fixedValueFvPatchField<vector>(ptf),
    flowRate_(ptf.flowRate_.clone()),
    alphaName_(ptf.alphaName_)
{}
 
 
Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
::variableHeightFlowRateInletVelocityFvPatchVectorField
(
    const variableHeightFlowRateInletVelocityFvPatchVectorField& ptf,
    const DimensionedField<vector, volMesh>& iF
)
:
    fixedValueFvPatchField<vector>(ptf, iF),
    flowRate_(ptf.flowRate_.clone()),
    alphaName_(ptf.alphaName_)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::variableHeightFlowRateInletVelocityFvPatchVectorField::updateCoeffs()
{
    if (updated())
    {
        return;
    }
 
    const auto& mesh = patch().boundaryMesh().mesh();
    auto& alpha = mesh.lookupObjectRef<volScalarField>(alphaName_);
 
    // Update alpha boundary (if needed) due to mesh changes
    if (!mesh.upToDatePoints(alpha))
    {
        auto& alphabf = alpha.boundaryFieldRef();
 
        if (!alphabf[patch().index()].updated())
        {
            DebugInfo<< "Updating alpha BC due to mesh changes" << endl;
            alphabf.evaluateSelected(labelList({ patch().index() }));
        }
    }
 
    scalarField alphap(alpha.boundaryField()[patch().index()]);
 
    // Clamp to 0-1 range
    alphap.clamp_range(Foam::zero_one{});
 
    const scalar t = db().time().timeOutputValue();
    scalar flowRate = flowRate_->value(t);
 
    // a simpler way of doing this would be nice
    const scalar avgU = -flowRate/gWeightedSum(patch().magSf(), alphap);
 
    vectorField n(patch().nf());
 
    operator==(n*avgU*alphap);
 
    fixedValueFvPatchField<vector>::updateCoeffs();
}
 
 
void Foam::variableHeightFlowRateInletVelocityFvPatchVectorField::write
(
    Ostream& os
) const
{
    fvPatchField<vector>::write(os);
    flowRate_->writeData(os);
    os.writeEntry("alpha", alphaName_);
    fvPatchField<vector>::writeValueEntry(os);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
   makePatchTypeField
   (
       fvPatchVectorField,
       variableHeightFlowRateInletVelocityFvPatchVectorField
   );
}
 
 
// ************************************************************************* //