1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 1991-2009 OpenCFD Ltd.
7 -------------------------------------------------------------------------------
9 This file is part of OpenFOAM.
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12 under the terms of the GNU General Public License as published by the
13 Free Software Foundation; either version 2 of the License, or (at your
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18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 Laplace filter for LES
32 Kernel as filter as Test filter with ratio 2
33 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
34 Box filter: g = delta2/24 -> g = delta2/6
35 Spherical box filter: g = delta2/64 -> g = delta2/16
36 Gaussian filter: g = delta2/24 -> g = delta2/6
42 \*---------------------------------------------------------------------------*/
44 #ifndef laplaceFilter_H
45 #define laplaceFilter_H
47 #include "LESfilter.H"
49 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
54 /*---------------------------------------------------------------------------*\
55 Class laplaceFilter Declaration
56 \*---------------------------------------------------------------------------*/
65 volScalarField coeff_;
68 // Private Member Functions
70 //- Disallow default bitwise copy construct and assignment
71 laplaceFilter(const laplaceFilter&);
72 void operator=(const laplaceFilter&);
77 //- Runtime type information
83 //- Construct from components
84 laplaceFilter(const fvMesh& mesh, scalar widthCoeff);
86 //- Construct from IOdictionary
87 laplaceFilter(const fvMesh& mesh, const dictionary&);
91 virtual ~laplaceFilter()
97 //- Read the LESfilter dictionary
98 virtual void read(const dictionary&);
103 virtual tmp<volScalarField> operator()(const tmp<volScalarField>&) const;
105 virtual tmp<volVectorField> operator()(const tmp<volVectorField>&) const;
107 virtual tmp<volSymmTensorField> operator()
109 const tmp<volSymmTensorField>&
112 virtual tmp<volTensorField> operator()(const tmp<volTensorField>&) const;
116 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
118 } // End namespace Foam
120 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
124 // ************************************************************************* //