1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
7 -------------------------------------------------------------------------------
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
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 \*---------------------------------------------------------------------------*/
26 #include "Analytical.H"
28 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
31 Foam::Analytical<Type>::Analytical
34 const dictionary& dict
37 IntegrationScheme<Type>(phiName, dict)
42 Foam::Analytical<Type>::Analytical(const Analytical& is)
44 IntegrationScheme<Type>(is)
48 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
51 Foam::Analytical<Type>::~Analytical()
55 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
58 typename Foam::IntegrationScheme<Type>::integrationResult
59 Foam::Analytical<Type>::integrate
63 const Type& alphaBeta,
67 typename IntegrationScheme<Type>::integrationResult retValue;
69 const scalar expTerm = exp(min(50, -beta*dt));
71 if (beta > ROOTVSMALL)
73 const Type alpha = alphaBeta/beta;
74 retValue.average() = alpha + (phi - alpha)*(1 - expTerm)/(beta*dt);
75 retValue.value() = alpha + (phi - alpha)*expTerm;
79 retValue.average() = phi;
80 retValue.value() = phi;
88 // ************************************************************************* //