exponentialDiffusivity.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    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::exponentialDiffusivity
 
Description
    Mesh motion diffusivity maipulator which returns the exp(-alpha/D)
    of the given diffusivity D.
 
SourceFiles
    exponentialDiffusivity.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef exponentialDiffusivity_H
#define exponentialDiffusivity_H
 
#include "motionDiffusivity.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class exponentialDiffusivity Declaration
\*---------------------------------------------------------------------------*/
 
class exponentialDiffusivity
:
    public motionDiffusivity
{
    // Private data
 
        scalar alpha_;
        autoPtr<motionDiffusivity> basicDiffusivityPtr_;
 
 
    // Private Member Functions
 
        //- Disallow default bitwise copy construct
        exponentialDiffusivity(const exponentialDiffusivity&);
 
        //- Disallow default bitwise assignment
        void operator=(const exponentialDiffusivity&);
 
 
public:
 
    //- Runtime type information
    TypeName("exponential");
 
 
    // Constructors
 
        //- Construct for the given fvMesh and data Istream
        exponentialDiffusivity(const fvMesh& mesh, Istream& mdData);
 
 
    //- Destructor
    virtual ~exponentialDiffusivity();
 
 
    // Member Functions
 
        //- Return diffusivity field
        virtual tmp<surfaceScalarField> operator()() const;
 
        //- Correct the motion diffusivity
        virtual void correct();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //