Dual.C

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    Copyright (C) 2013-2017 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "Dual.H"
#include "coupledPointPatchField.H"
 
// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
 
template<class Type>
Foam::labelList Foam::AveragingMethods::Dual<Type>::sizing(const fvMesh& mesh)
{
    labelList sizes(2);
    sizes[0] = mesh.nCells();
    sizes[1] = mesh.nPoints();
    return sizes;
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class Type>
Foam::AveragingMethods::Dual<Type>::Dual
(
    const IOobject& io,
    const dictionary& dict,
    const fvMesh& mesh
)
:
    AveragingMethod<Type>(io, dict, mesh, sizing(mesh)),
    volumeCell_(mesh.V()),
    volumeDual_(mesh.nPoints(), Zero),
    dataCell_(FieldField<Field, Type>::operator[](0)),
    dataDual_(FieldField<Field, Type>::operator[](1))
{
    forAll(this->mesh_.C(), celli)
    {
        List<tetIndices> cellTets =
            polyMeshTetDecomposition::cellTetIndices(this->mesh_, celli);
        forAll(cellTets, tetI)
        {
            const tetIndices& tetIs = cellTets[tetI];
            const triFace triIs = tetIs.faceTriIs(this->mesh_);
            const scalar v = tetIs.tet(this->mesh_).mag();
            volumeDual_[triIs[0]] += v;
            volumeDual_[triIs[1]] += v;
            volumeDual_[triIs[2]] += v;
        }
    }
 
    mesh.globalData().syncPointData
    (
        volumeDual_,
        plusEqOp<scalar>(),
        mapDistribute::transform()
    );
}
 
 
template<class Type>
Foam::AveragingMethods::Dual<Type>::Dual
(
    const Dual<Type>& am
)
:
    AveragingMethod<Type>(am),
    volumeCell_(am.volumeCell_),
    volumeDual_(am.volumeDual_),
    dataCell_(FieldField<Field, Type>::operator[](0)),
    dataDual_(FieldField<Field, Type>::operator[](1))
{}
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
template<class Type>
void Foam::AveragingMethods::Dual<Type>::syncDualData()
{
    this->mesh_.globalData().syncPointData
    (
        dataDual_,
        plusEqOp<Type>(),
        mapDistribute::transform()
    );
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Type>
void Foam::AveragingMethods::Dual<Type>::add
(
    const barycentric& coordinates,
    const tetIndices& tetIs,
    const Type& value
)
{
    const triFace triIs(tetIs.faceTriIs(this->mesh_));
 
    dataCell_[tetIs.cell()] +=
        coordinates[0]*value
      / (0.25*volumeCell_[tetIs.cell()]);
 
    for (label i = 0; i < 3; ++i)
    {
        dataDual_[triIs[i]] +=
            coordinates[i+1]*value
          / (0.25*volumeDual_[triIs[i]]);
    }
}
 
 
template<class Type>
Type Foam::AveragingMethods::Dual<Type>::interpolate
(
    const barycentric& coordinates,
    const tetIndices& tetIs
) const
{
    const triFace triIs(tetIs.faceTriIs(this->mesh_));
 
    return
        coordinates[0]*dataCell_[tetIs.cell()]
      + coordinates[1]*dataDual_[triIs[0]]
      + coordinates[2]*dataDual_[triIs[1]]
      + coordinates[3]*dataDual_[triIs[2]];
}
 
 
template<class Type>
typename Foam::AveragingMethods::Dual<Type>::TypeGrad
Foam::AveragingMethods::Dual<Type>::interpolateGrad
(
    const barycentric& coordinates,
    const tetIndices& tetIs
) const
{
    const triFace triIs(tetIs.faceTriIs(this->mesh_));
 
    const label celli(tetIs.cell());
 
    const tensor T
    (
        inv
        (
            tensor
            (
                this->mesh_.points()[triIs[0]] - this->mesh_.C()[celli],
                this->mesh_.points()[triIs[1]] - this->mesh_.C()[celli],
                this->mesh_.points()[triIs[2]] - this->mesh_.C()[celli]
            )
        )
    );
 
    const vector t( - T.T().x() - T.T().y() - T.T().z());
 
    const TypeGrad S
    (
        dataDual_[triIs[0]],
        dataDual_[triIs[1]],
        dataDual_[triIs[2]]
    );
 
    const Type s(dataCell_[celli]);
 
    return (T & S) + (t*s);
}
 
 
template<class Type>
void Foam::AveragingMethods::Dual<Type>::average()
{
    syncDualData();
 
    AveragingMethod<Type>::average();
}
 
 
template<class Type>
void Foam::AveragingMethods::Dual<Type>::average
(
    const AveragingMethod<scalar>& weight
)
{
    syncDualData();
 
    AveragingMethod<Type>::average(weight);
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>>
Foam::AveragingMethods::Dual<Type>::primitiveField() const
{
    return tmp<Field<Type>>(dataCell_);
}
 
 
// ************************************************************************* //