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[OpenFOAM-2.0.x.git] / src / randomProcesses / processes / UOprocess / UOprocess.H
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1 /*---------------------------------------------------------------------------*\
2   =========                 |
3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
4    \\    /   O peration     |
5     \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
6      \\/     M anipulation  |
7 -------------------------------------------------------------------------------
8 License
9     This file is part of OpenFOAM.
11     OpenFOAM is free software: you can redistribute it and/or modify it
12     under the terms of the GNU General Public License as published by
13     the Free Software Foundation, either version 3 of the License, or
14     (at your option) any later version.
16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
19     for more details.
21     You should have received a copy of the GNU General Public License
22     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
24 Class
25     Foam::UOprocess
27 Description
28     Random UO process.
30 SourceFiles
31     UOprocess.C
33 \*---------------------------------------------------------------------------*/
35 #ifndef UOprocess_H
36 #define UOprocess_H
38 #include "complexFields.H"
39 #include "scalar.H"
40 #include "Random.H"
42 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
44 namespace Foam
47 class Kmesh;
48 class dictionary;
50 /*---------------------------------------------------------------------------*\
51                            Class UOprocess Declaration
52 \*---------------------------------------------------------------------------*/
54 class UOprocess
56     // Private data
58         Random GaussGen;
60         const Kmesh& Mesh;
61         const scalar DeltaT, RootDeltaT;
62         complexVectorField UOfield;
64         scalar Alpha;
65         scalar Sigma;
66         scalar Kupper;
67         scalar Klower;
68         scalar Scale;
71     // Private Member Functions
73         complexVector WeinerProcess();
76 public:
78     // Constructors
80         //- Construct from wavenumber mesh and timestep
81         UOprocess
82         (
83             const Kmesh& kmesh,
84             const scalar deltaT,
85             const dictionary&
86         );
89     // Member Functions
91         const complexVectorField& newField();
95 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
97 } // End namespace Foam
99 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
101 #endif
103 // ************************************************************************* //