1 /*---------------------------------------------------------------------------*\
3 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
5 \\ / A nd | Copyright held by original author
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 the
13 Free Software Foundation; either version 2 of the License, or (at your
14 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, write to the Free Software Foundation,
23 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 \*---------------------------------------------------------------------------*/
27 #include "exponentialRepulsion.H"
28 #include "addToRunTimeSelectionTable.H"
30 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
34 namespace pairPotentials
37 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
39 defineTypeNameAndDebug(exponentialRepulsion, 0);
41 addToRunTimeSelectionTable
49 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
51 exponentialRepulsion::exponentialRepulsion
54 const dictionary& exponentialRepulsion
57 pairPotential(name, exponentialRepulsion),
58 exponentialRepulsionCoeffs_
60 exponentialRepulsion.subDict(typeName + "Coeffs")
62 rm_(readScalar(exponentialRepulsionCoeffs_.lookup("rm"))),
63 epsilon_(readScalar(exponentialRepulsionCoeffs_.lookup("epsilon")))
69 // * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
71 scalar exponentialRepulsion::unscaledEnergy(const scalar r) const
73 return epsilon_ * exp(-r/rm_);
77 bool exponentialRepulsion::read(const dictionary& exponentialRepulsion)
79 pairPotential::read(exponentialRepulsion);
81 exponentialRepulsionCoeffs_ =
82 exponentialRepulsion.subDict(typeName + "Coeffs");
84 exponentialRepulsionCoeffs_.lookup("rm") >> rm_;
85 exponentialRepulsionCoeffs_.lookup("epsilon") >> epsilon_;
91 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
93 } // End namespace pairPotentials
94 } // End namespace Foam
96 // ************************************************************************* //