constrainHbyA.C

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    Copyright (C) 2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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#include "constrainHbyA.H"
#include "volFields.H"
#include "fixedFluxExtrapolatedPressureFvPatchScalarField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
Foam::tmp<Foam::volVectorField> Foam::constrainHbyA
(
    const tmp<volVectorField>& tHbyA,
    const volVectorField& U,
    const volScalarField& p
)
{
    tmp<volVectorField> tHbyANew;
 
    if (tHbyA.isTmp())
    {
        tHbyANew = tHbyA;
        tHbyANew.ref().rename("HbyA");
    }
    else
    {
        tHbyANew = new volVectorField("HbyA", tHbyA);
    }
 
    volVectorField& HbyA = tHbyANew.ref();
    volVectorField::Boundary& HbyAbf = HbyA.boundaryFieldRef();
 
    forAll(U.boundaryField(), patchi)
    {
        if
        (
           !U.boundaryField()[patchi].assignable()
        && !isA<fixedFluxExtrapolatedPressureFvPatchScalarField>
            (
                p.boundaryField()[patchi]
            )
        )
        {
            HbyAbf[patchi] = U.boundaryField()[patchi];
        }
    }
 
    return tHbyANew;
}
 
 
// ************************************************************************* //