UOprocess.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011 OpenFOAM Foundation
-------------------------------------------------------------------------------
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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    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::UOprocess
 
Description
    Random UO process.
 
SourceFiles
    UOprocess.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef UOprocess_H
#define UOprocess_H
 
#include "complexFields.H"
#include "scalar.H"
#include "Random.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class Kmesh;
class dictionary;
 
/*---------------------------------------------------------------------------*\
                           Class UOprocess Declaration
\*---------------------------------------------------------------------------*/
 
class UOprocess
{
    // Private data
 
        Random GaussGen;
 
        const Kmesh& Mesh;
        const scalar DeltaT, RootDeltaT;
        complexVectorField UOfield;
 
        scalar Alpha;
        scalar Sigma;
        scalar Kupper;
        scalar Klower;
        scalar Scale;
 
 
    // Private Member Functions
 
        complexVector WeinerProcess();
 
 
public:
 
    // Constructors
 
        //- Construct from wavenumber mesh and timestep
        UOprocess
        (
            const Kmesh& kmesh,
            const scalar deltaT,
            const dictionary&
        );
 
 
    // Member Functions
 
        const complexVectorField& newField();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //