mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-12-28 03:37:59 +00:00
4f1bb8345f
- can now use dictionary substitutions and regular expressions in
system/fvSolution
- foamUpgradeFvSolution application to convert system/fvSolution
(with -test option)
motion solver syntax left as-is.
116 lines
3.3 KiB
C++
116 lines
3.3 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 1991-2008 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Class
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Foam::DILUPreconditioner
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Description
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Simplified diagonal-based incomplete LU preconditioner for asymmetric
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matrices. The reciprocal of the preconditioned diagonal is calculated
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and stored.
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SourceFiles
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DILUPreconditioner.C
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\*---------------------------------------------------------------------------*/
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#ifndef DILUPreconditioner_H
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#define DILUPreconditioner_H
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#include "lduMatrix.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class DILUPreconditioner Declaration
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\*---------------------------------------------------------------------------*/
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class DILUPreconditioner
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:
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public lduMatrix::preconditioner
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{
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// Private data
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//- The reciprocal preconditioned diagonal
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scalarField rD_;
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public:
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//- Runtime type information
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TypeName("DILU");
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// Constructors
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//- Construct from matrix components and preconditioner solver controls
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DILUPreconditioner
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(
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const lduMatrix::solver&,
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const dictionary& solverControlsUnused
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);
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// Destructor
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virtual ~DILUPreconditioner()
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{}
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// Member Functions
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//- Calculate the reciprocal of the preconditioned diagonal
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static void calcReciprocalD(scalarField& rD, const lduMatrix& matrix);
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//- Return wA the preconditioned form of residual rA
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virtual void precondition
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(
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scalarField& wA,
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const scalarField& rA,
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const direction cmpt=0
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) const;
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//- Return wT the transpose-matrix preconditioned form of residual rT.
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virtual void preconditionT
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(
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scalarField& wT,
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const scalarField& rT,
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const direction cmpt=0
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) const;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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