fixedMeanFvPatchField.C

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
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    (at your option) any later version.
 
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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "fixedMeanFvPatchField.H"
#include "volFields.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class Type>
Foam::fixedMeanFvPatchField<Type>::fixedMeanFvPatchField
(
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF
)
:
    fixedValueFvPatchField<Type>(p, iF),
    meanValue_(pTraits<Type>::zero)
{}
 
 
template<class Type>
Foam::fixedMeanFvPatchField<Type>::fixedMeanFvPatchField
(
    const fixedMeanFvPatchField<Type>& ptf,
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    fixedValueFvPatchField<Type>(ptf, p, iF, mapper),
    meanValue_(ptf.meanValue_)
{}
 
 
template<class Type>
Foam::fixedMeanFvPatchField<Type>::fixedMeanFvPatchField
(
    const fvPatch& p,
    const DimensionedField<Type, volMesh>& iF,
    const dictionary& dict
)
:
    fixedValueFvPatchField<Type>(p, iF, dict),
    meanValue_(pTraits<Type>(dict.lookup("meanValue")))
{}
 
 
template<class Type>
Foam::fixedMeanFvPatchField<Type>::fixedMeanFvPatchField
(
    const fixedMeanFvPatchField<Type>& ptf
)
:
    fixedValueFvPatchField<Type>(ptf),
    meanValue_(ptf.meanValue_)
{}
 
 
template<class Type>
Foam::fixedMeanFvPatchField<Type>::fixedMeanFvPatchField
(
    const fixedMeanFvPatchField<Type>& ptf,
    const DimensionedField<Type, volMesh>& iF
)
:
    fixedValueFvPatchField<Type>(ptf, iF),
    meanValue_(ptf.meanValue_)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Type>
void Foam::fixedMeanFvPatchField<Type>::updateCoeffs()
{
    if (this->updated())
    {
        return;
    }
 
    Field<Type> newValues(this->patchInternalField());
 
    Type meanValuePsi =
        gSum(this->patch().magSf()*newValues)
       /gSum(this->patch().magSf());
 
    if (mag(meanValue_) > SMALL && mag(meanValuePsi)/mag(meanValue_) > 0.5)
    {
        newValues *= mag(meanValue_)/mag(meanValuePsi);
    }
    else
    {
        newValues += (meanValue_ - meanValuePsi);
    }
 
    this->operator==(newValues);
 
    fixedValueFvPatchField<Type>::updateCoeffs();
}
 
 
template<class Type>
void Foam::fixedMeanFvPatchField<Type>::write(Ostream& os) const
{
    fvPatchField<Type>::write(os);
    os.writeKeyword("meanValue") << meanValue_ << token::END_STATEMENT << nl;
    this->writeEntry("value", os);
}
 
 
// ************************************************************************* //