1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright (C) 2008-2010 OpenCFD Ltd.
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 "exponentialRepulsion.H"
27 #include "addToRunTimeSelectionTable.H"
29 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
33 namespace pairPotentials
36 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
38 defineTypeNameAndDebug(exponentialRepulsion, 0);
40 addToRunTimeSelectionTable
48 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
50 exponentialRepulsion::exponentialRepulsion
53 const dictionary& exponentialRepulsion
56 pairPotential(name, exponentialRepulsion),
57 exponentialRepulsionCoeffs_
59 exponentialRepulsion.subDict(typeName + "Coeffs")
61 rm_(readScalar(exponentialRepulsionCoeffs_.lookup("rm"))),
62 epsilon_(readScalar(exponentialRepulsionCoeffs_.lookup("epsilon")))
68 // * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
70 scalar exponentialRepulsion::unscaledEnergy(const scalar r) const
72 return epsilon_ * exp(-r/rm_);
76 bool exponentialRepulsion::read(const dictionary& exponentialRepulsion)
78 pairPotential::read(exponentialRepulsion);
80 exponentialRepulsionCoeffs_ =
81 exponentialRepulsion.subDict(typeName + "Coeffs");
83 exponentialRepulsionCoeffs_.lookup("rm") >> rm_;
84 exponentialRepulsionCoeffs_.lookup("epsilon") >> epsilon_;
90 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
92 } // End namespace pairPotentials
93 } // End namespace Foam
95 // ************************************************************************* //