BUG: UListIO: byteSize overflowing on really big faceLists
[OpenFOAM-2.0.x.git] / src / lagrangian / molecularDynamics / potential / pairPotential / derived / dampedCoulomb / dampedCoulomb.C
blob7438711d66687cb2fe3f4ff978de645e5def4d05
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 \*---------------------------------------------------------------------------*/
26 #include "dampedCoulomb.H"
27 #include "mathematicalConstants.H"
28 #include "addToRunTimeSelectionTable.H"
30 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
32 namespace Foam
34 namespace pairPotentials
37 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
39 defineTypeNameAndDebug(dampedCoulomb, 0);
41 addToRunTimeSelectionTable
43     pairPotential,
44     dampedCoulomb,
45     dictionary
48 scalar dampedCoulomb::oneOverFourPiEps0 =
49     1.0/(4.0*constant::mathematical::pi*8.854187817e-12);
52 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
54 dampedCoulomb::dampedCoulomb
56     const word& name,
57     const dictionary& pairPotentialProperties
60     pairPotential(name, pairPotentialProperties),
61     dampedCoulombCoeffs_
62     (
63         pairPotentialProperties.subDict(typeName + "Coeffs")
64     ),
65     alpha_(readScalar(dampedCoulombCoeffs_.lookup("alpha")))
67     setLookupTables();
71 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
73 scalar dampedCoulomb::unscaledEnergy(const scalar r) const
75     return oneOverFourPiEps0*erfc(alpha_*r)/r;
79 bool dampedCoulomb::read(const dictionary& pairPotentialProperties)
81     pairPotential::read(pairPotentialProperties);
83     dampedCoulombCoeffs_ =
84         pairPotentialProperties.subDict(typeName + "Coeffs");
86     dampedCoulombCoeffs_.lookup("alpha") >> alpha_;
88     return true;
92 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
94 } // End namespace pairPotentials
95 } // End namespace Foam
97 // ************************************************************************* //