laplaceFilter.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
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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
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Class
    Foam::laplaceFilter
 
Description
    Laplace filter for LES
 
    \verbatim
    Kernel                 as filter          as Test filter with ratio 2
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Box filter:            g = delta2/24  ->  g = delta2/6
    Spherical box filter:  g = delta2/64  ->  g = delta2/16
    Gaussian filter:       g = delta2/24  ->  g = delta2/6
    \endverbatim
 
SourceFiles
    laplaceFilter.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef laplaceFilter_H
#define laplaceFilter_H
 
#include "LESfilter.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class laplaceFilter Declaration
\*---------------------------------------------------------------------------*/
 
class laplaceFilter
:
    public LESfilter
{
    // Private data
 
        scalar widthCoeff_;
        volScalarField coeff_;
 
 
    // Private Member Functions
 
        //- Disallow default bitwise copy construct and assignment
        laplaceFilter(const laplaceFilter&);
        void operator=(const laplaceFilter&);
 
 
public:
 
    //- Runtime type information
    TypeName("laplace");
 
 
    // Constructors
 
        //- Construct from components
        laplaceFilter(const fvMesh& mesh, scalar widthCoeff);
 
        //- Construct from IOdictionary
        laplaceFilter(const fvMesh& mesh, const dictionary&);
 
 
    //- Destructor
    virtual ~laplaceFilter()
    {}
 
 
    // Member Functions
 
        //- Read the LESfilter dictionary
        virtual void read(const dictionary&);
 
 
    // Member Operators
 
        virtual tmp<volScalarField> operator()
        (
            const tmp<volScalarField>&
        ) const;
 
        virtual tmp<volVectorField> operator()
        (
            const tmp<volVectorField>&
        ) const;
 
        virtual tmp<volSymmTensorField> operator()
        (
            const tmp<volSymmTensorField>&
        ) const;
 
        virtual tmp<volTensorField> operator()
        (
            const tmp<volTensorField>&
        ) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //