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invDistLeastSquaresVectors.C
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invDistLeastSquaresVectors.C
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2013-2016 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
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "leastSquaresVectors.H"
#include "volFields.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(leastSquaresVectors, 0);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::leastSquaresVectors::leastSquaresVectors(const fvMesh& mesh)
:
MeshObject<fvMesh, Foam::MoveableMeshObject, leastSquaresVectors>(mesh),
pVectors_
(
IOobject
(
"LeastSquaresP",
mesh_.pointsInstance(),
mesh_,
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
mesh_,
dimensionedVector("zero", dimless/dimLength, Zero)
),
nVectors_
(
IOobject
(
"LeastSquaresN",
mesh_.pointsInstance(),
mesh_,
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
mesh_,
dimensionedVector("zero", dimless/dimLength, Zero)
)
{
calcLeastSquaresVectors();
}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::leastSquaresVectors::~leastSquaresVectors()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::leastSquaresVectors::calcLeastSquaresVectors()
{
if (debug)
{
InfoInFunction << "Calculating least square gradient vectors" << endl;
}
const fvMesh& mesh = mesh_;
// Set local references to mesh data
const labelUList& owner = mesh_.owner();
const labelUList& neighbour = mesh_.neighbour();
const volVectorField& C = mesh.C();
// Set up temporary storage for the dd tensor (before inversion)
symmTensorField dd(mesh_.nCells(), Zero);
forAll(owner, facei)
{
label own = owner[facei];
label nei = neighbour[facei];
vector d = C[nei] - C[own];
symmTensor wdd = sqr(d)/magSqr(d);
dd[own] += wdd;
dd[nei] += wdd;
}
surfaceVectorField::Boundary& blsP =
pVectors_.boundaryField();
forAll(blsP, patchi)
{
const fvsPatchVectorField& patchLsP = blsP[patchi];
const fvPatch& p = patchLsP.patch();
const labelUList& faceCells = p.patch().faceCells();
// Build the d-vectors
vectorField pd(p.delta());
forAll(pd, patchFacei)
{
const vector& d = pd[patchFacei];
dd[faceCells[patchFacei]] += sqr(d)/magSqr(d);
}
}
// Invert the dd tensor
const symmTensorField invDd(inv(dd));
// Revisit all faces and calculate the pVectors_ and nVectors_ vectors
forAll(owner, facei)
{
label own = owner[facei];
label nei = neighbour[facei];
vector d = C[nei] - C[own];
pVectors_[facei] = (invDd[own] & d)/magSqr(d);
nVectors_[facei] = -(invDd[nei] & d)/magSqr(d);
}
forAll(blsP, patchi)
{
fvsPatchVectorField& patchLsP = blsP[patchi];
const fvPatch& p = patchLsP.patch();
const labelUList& faceCells = p.faceCells();
// Build the d-vectors
vectorField pd(p.delta());
forAll(pd, patchFacei)
{
const vector& d = pd[patchFacei];
patchLsP[patchFacei] = (invDd[faceCells[patchFacei]] & d)/magSqr(d);
}
}
if (debug)
{
InfoInFunction
<<"Finished calculating least square gradient vectors" << endl;
}
}
bool Foam::leastSquaresVectors::movePoints()
{
calcLeastSquaresVectors();
return true;
}
// ************************************************************************* //