Dual.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2013-2014 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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
    the Free Software Foundation, either version 3 of the License, or
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
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\*---------------------------------------------------------------------------*/
 
#include "Dual.H"
#include "coupledPointPatchField.H"
 
// * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
 
template<class Type>
Foam::autoPtr<Foam::labelList> Foam::AveragingMethods::Dual<Type>::size
(
    const fvMesh& mesh
)
{
    autoPtr<labelList> s(new labelList(2));
    s()[0] = mesh.nCells();
    s()[1] = mesh.nPoints();
    return s;
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
template<class Type>
Foam::AveragingMethods::Dual<Type>::Dual
(
    const IOobject& io,
    const dictionary& dict,
    const fvMesh& mesh
)
:
    AveragingMethod<Type>(io, dict, mesh, size(mesh)),
    volumeCell_(mesh.V()),
    volumeDual_(mesh.nPoints(), 0.0),
    dataCell_(FieldField<Field, Type>::operator[](0)),
    dataDual_(FieldField<Field, Type>::operator[](1)),
    tetVertices_(3),
    tetCoordinates_(4)
{
    forAll(this->mesh_.C(), cellI)
    {
        List<tetIndices> cellTets =
            polyMeshTetDecomposition::cellTetIndices(this->mesh_, cellI);
        forAll(cellTets, tetI)
        {
            const tetIndices& tetIs = cellTets[tetI];
            const face& f = this->mesh_.faces()[tetIs.face()];
            const scalar v = tetIs.tet(this->mesh_).mag();
            volumeDual_[f[tetIs.faceBasePt()]] += v;
            volumeDual_[f[tetIs.facePtA()]] += v;
            volumeDual_[f[tetIs.facePtB()]] += 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)),
    tetVertices_(am.tetVertices_),
    tetCoordinates_(am.tetCoordinates_)
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
template<class Type>
Foam::AveragingMethods::Dual<Type>::~Dual()
{}
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
template<class Type>
void Foam::AveragingMethods::Dual<Type>::tetGeometry
(
    const point position,
    const tetIndices& tetIs
) const
{
    const face& f = this->mesh_.faces()[tetIs.face()];
 
    tetVertices_[0] = f[tetIs.faceBasePt()];
    tetVertices_[1] = f[tetIs.facePtA()];
    tetVertices_[2] = f[tetIs.facePtB()];
 
    tetIs.tet(this->mesh_).barycentric(position, tetCoordinates_);
 
    tetCoordinates_ = max(tetCoordinates_, scalar(0));
}
 
 
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 point position,
    const tetIndices& tetIs,
    const Type& value
)
{
    tetGeometry(position, tetIs);
 
    dataCell_[tetIs.cell()] +=
        tetCoordinates_[0]*value
      / (0.25*volumeCell_[tetIs.cell()]);
 
    for(label i = 0; i < 3; i ++)
    {
        dataDual_[tetVertices_[i]] +=
            tetCoordinates_[i+1]*value
          / (0.25*volumeDual_[tetVertices_[i]]);
    }
}
 
 
template<class Type>
Type Foam::AveragingMethods::Dual<Type>::interpolate
(
    const point position,
    const tetIndices& tetIs
) const
{
    tetGeometry(position, tetIs);
 
    return
        tetCoordinates_[0]*dataCell_[tetIs.cell()]
      + tetCoordinates_[1]*dataDual_[tetVertices_[0]]
      + tetCoordinates_[2]*dataDual_[tetVertices_[1]]
      + tetCoordinates_[3]*dataDual_[tetVertices_[2]];
}
 
 
template<class Type>
typename Foam::AveragingMethods::Dual<Type>::TypeGrad
Foam::AveragingMethods::Dual<Type>::interpolateGrad
(
    const point position,
    const tetIndices& tetIs
) const
{
    tetGeometry(position, tetIs);
 
    const label cellI(tetIs.cell());
 
    const tensor T
    (
        inv
        (
            tensor
            (
                this->mesh_.points()[tetVertices_[0]] - this->mesh_.C()[cellI],
                this->mesh_.points()[tetVertices_[1]] - this->mesh_.C()[cellI],
                this->mesh_.points()[tetVertices_[2]] - this->mesh_.C()[cellI]
            )
        )
    );
 
    const vector t( - T.T().x() - T.T().y() - T.T().z());
 
    const TypeGrad S
    (
        dataDual_[tetVertices_[0]],
        dataDual_[tetVertices_[1]],
        dataDual_[tetVertices_[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>::internalField() const
{
    return tmp<Field<Type> >(dataCell_);
}
 
 
// ************************************************************************* //