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/* This file is part of the OpenLB library
*
* Copyright (C) 2017 Marie-Luise Maier, Mathias J. Krause, Sascha Janz
* E-mail contact: info@openlb.net
* The most recent release of OpenLB can be downloaded at
* <http://www.openlb.net/>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/// Linear damping Force for magnetic dipolemoment in magnetic Field
#ifndef StokesDragForceForHomVelField3D_HH
#define StokesDragForceForHomVelField3D_HH
#include <cmath>
#include "stokesDragForceForHomVelField3D.h"
namespace olb {
template<typename T, template<typename U> class PARTICLETYPE, typename DESCRIPTOR>
StokesDragForceForHomVelField3D<T, PARTICLETYPE, DESCRIPTOR>::StokesDragForceForHomVelField3D(T dynVisc, Vector<T, 3> fluidVel):
Force3D<T, PARTICLETYPE>(), _dynVisc(dynVisc), _fluidVel(fluidVel)
{
// this->_name = "StokesDragForceForHomVelField3D";
}
template<typename T, template<typename U> class PARTICLETYPE, typename DESCRIPTOR>
void StokesDragForceForHomVelField3D<T, PARTICLETYPE, DESCRIPTOR>::applyForce(
typename std::deque<PARTICLETYPE<T> >::iterator p, int pInt,
ParticleSystem3D<T, PARTICLETYPE>& pSys)
{
Vector<T, 3> force = {T(0), T(0), T(0)} ;
for (int i = 0; i < 3; i++) {
force[i] = -1 * 6 * M_PI * p->getRad() * (p->getVel()[i] - _fluidVel[i]) * _dynVisc ;
p->getForce()[i] += force[i] ;
}
}
}
#endif // StokesDragForceForHomVelField3D
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