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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 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 "GAMGSolver.H"
#include "vector2D.H"
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::GAMGSolver::scale
(
scalarField& field,
scalarField& Acf,
const lduMatrix& A,
const Field<Field<scalar>>& interfaceLevelBouCoeffs,
const lduInterfaceFieldPtrsList& interfaceLevel,
const scalarField& source,
const direction cmpt
) const
{
A.Amul
(
Acf,
field,
interfaceLevelBouCoeffs,
interfaceLevel,
cmpt
);
scalar scalingFactorNum = 0.0;
scalar scalingFactorDenom = 0.0;
forAll(field, i)
{
scalingFactorNum += source[i]*field[i];
scalingFactorDenom += Acf[i]*field[i];
}
vector2D scalingVector(scalingFactorNum, scalingFactorDenom);
A.mesh().reduce(scalingVector, sumOp());
const scalar sf = scalingVector.x()/stabilise(scalingVector.y(), vSmall);
if (debug >= 2)
{
Pout<< sf << " ";
}
const scalarField& D = A.diag();
forAll(field, i)
{
field[i] = sf*field[i] + (source[i] - sf*Acf[i])/D[i];
}
}
// ************************************************************************* //
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