smoothSolver.H

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    Copyright (C) 2011-2013 OpenFOAM Foundation
    Copyright (C) 2019 OpenCFD Ltd.
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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.
 
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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
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::smoothSolver
 
Group
    grpLduMatrixSolvers
 
Description
    Iterative solver for symmetric and asymmetric matrices which uses a
    run-time selected smoother e.g. GaussSeidel to converge the solution to
    the required tolerance.
 
    To improve efficiency, the residual is evaluated after every nSweeps
    smoothing iterations.
 
SourceFiles
    smoothSolver.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef smoothSolver_H
#define smoothSolver_H
 
#include "lduMatrix.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class smoothSolver Declaration
\*---------------------------------------------------------------------------*/
 
class smoothSolver
:
    public lduMatrix::solver
{
protected:
 
    // Protected data
 
        //- Number of sweeps before the evaluation of residual
        label nSweeps_;
 
        //- Read the control parameters from the controlDict_
        virtual void readControls();
 
 
public:
 
    //- Runtime type information
    TypeName("smoothSolver");
 
 
    // Constructors
 
        //- Construct from matrix components and solver controls
        smoothSolver
        (
            const word& fieldName,
            const lduMatrix& matrix,
            const FieldField<Field, scalar>& interfaceBouCoeffs,
            const FieldField<Field, scalar>& interfaceIntCoeffs,
            const lduInterfaceFieldPtrsList& interfaces,
            const dictionary& solverControls
        );
 
 
    //- Destructor
    virtual ~smoothSolver() = default;
 
    // Member Functions
 
        //- Solve the matrix with this solver
        virtual solverPerformance solve
        (
            scalarField& psi,
            const scalarField& source,
            const direction cmpt=0
        ) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //