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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2018 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 "Kmesh.H"
#include "polyMesh.H"
#include "volFields.H"
#include "mathematicalConstants.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
inline Foam::label Foam::Kmesh::index
(
const label i,
const label j,
const label k,
const labelList& nn
)
{
return (k + j*nn[2] + i*nn[1]*nn[2]);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::Kmesh::Kmesh(const fvMesh& mesh)
:
vectorField(mesh.V().size()),
nn_(vector::dim)
{
boundBox box = mesh.bounds();
l_ = box.span();
vector cornerCellCentre = ::Foam::max(mesh.C().primitiveField());
vector cellL = 2*(box.max() - cornerCellCentre);
vector rdeltaByL;
label nTot = 1;
forAll(nn_, i)
{
nn_[i] = label(l_[i]/cellL[i] + 0.5);
nTot *= nn_[i];
if (nn_[i] > 1)
{
l_[i] -= cellL[i];
}
rdeltaByL[i] = nn_[i]/(l_[i]*l_[i]);
}
if (nTot != mesh.nCells())
{
FatalErrorInFunction
<< "calculated number of cells is incorrect"
<< abort(FatalError);
}
for (label i=0; i<nn_[0]; i++)
{
scalar k1 = (i - nn_[0]/2)*constant::mathematical::twoPi/l_[0];
for (label j=0; j<nn_[1]; j++)
{
scalar k2 = (j - nn_[1]/2)*constant::mathematical::twoPi/l_[1];
for (label k=0; k<nn_[2]; k++)
{
scalar k3 = (k - nn_[2]/2)*constant::mathematical::twoPi/l_[2];
(*this)[index(i, j, k, nn_)] = vector(k1, k2, k3);
}
}
}
kmax_ = mag
(
Foam::max
(
cmptMag((*this)[index(nn_[0]-1, nn_[1]-1, nn_[2]-1, nn_)]),
cmptMag((*this)[index(0, 0, 0, nn_)])
)
);
}
// ************************************************************************* //
|