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138 lines
3.8 KiB
C++
138 lines
3.8 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) 2011 OpenFOAM Foundation
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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
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the Free Software Foundation, either version 3 of the License, or
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(at your 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, see <http://www.gnu.org/licenses/>.
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Class
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scalarMatrices
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Description
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Scalar matrices
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SourceFiles
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scalarMatrices.C
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scalarMatricesTemplates.C
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\*---------------------------------------------------------------------------*/
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#ifndef scalarMatrices_H
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#define scalarMatrices_H
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#include "RectangularMatrix.H"
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#include "SquareMatrix.H"
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#include "DiagonalMatrix.H"
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#include "scalarField.H"
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#include "labelList.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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typedef RectangularMatrix<scalar> scalarRectangularMatrix;
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typedef SquareMatrix<scalar> scalarSquareMatrix;
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typedef DiagonalMatrix<scalar> scalarDiagonalMatrix;
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//- Solve the matrix using Gaussian elimination with pivoting,
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// returning the solution in the source
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template<class Type>
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void solve(scalarSquareMatrix& matrix, Field<Type>& source);
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//- Solve the matrix using Gaussian elimination with pivoting
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// and return the solution
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template<class Type>
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void solve
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(
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Field<Type>& psi,
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const scalarSquareMatrix& matrix,
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const Field<Type>& source
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);
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//- LU decompose the matrix with pivoting
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void LUDecompose
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(
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scalarSquareMatrix& matrix,
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labelList& pivotIndices
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);
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//- LU back-substitution with given source, returning the solution
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// in the source
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template<class Type>
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void LUBacksubstitute
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(
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const scalarSquareMatrix& luMmatrix,
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const labelList& pivotIndices,
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Field<Type>& source
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);
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//- Solve the matrix using LU decomposition with pivoting
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// returning the LU form of the matrix and the solution in the source
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template<class Type>
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void LUsolve(scalarSquareMatrix& matrix, Field<Type>& source);
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template<class Form, class Type>
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void multiply
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(
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Matrix<Form, Type>& answer, // value changed in return
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const Matrix<Form, Type>& A,
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const Matrix<Form, Type>& B
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);
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void multiply
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(
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scalarRectangularMatrix& answer, // value changed in return
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const scalarRectangularMatrix& A,
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const scalarRectangularMatrix& B,
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const scalarRectangularMatrix& C
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);
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void multiply
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(
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scalarRectangularMatrix& answer, // value changed in return
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const scalarRectangularMatrix& A,
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const DiagonalMatrix<scalar>& B,
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const scalarRectangularMatrix& C
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);
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//- Return the inverse of matrix A using SVD
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scalarRectangularMatrix SVDinv
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(
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const scalarRectangularMatrix& A,
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scalar minCondition = 0
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);
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#ifdef NoRepository
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# include "scalarMatricesTemplates.C"
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#endif
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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