1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
/* 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 LinearDampingForceForMagDipoleMoment3D_HH
#define LinearDampingForceForMagDipoleMoment3D_HH
#include <cmath>
#include <vector>
#include "linearDampingForceForMagDipoleMoment3D.h"
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
namespace olb {
template<typename T, template<typename U> class PARTICLETYPE, typename DESCRIPTOR>
LinearDampingForceForMagDipoleMoment3D<T, PARTICLETYPE, DESCRIPTOR>::LinearDampingForceForMagDipoleMoment3D(T dynVisc, T frictionFac):
Force3D<T, PARTICLETYPE>(), _dynVisc(dynVisc), _frictionFac(frictionFac)
{
// this->_name = "LinearDampingForceForMagDipoleMoment3D";
}
template<typename T, template<typename U> class PARTICLETYPE, typename DESCRIPTOR>
void LinearDampingForceForMagDipoleMoment3D<T, PARTICLETYPE, DESCRIPTOR>::applyForce(
typename std::deque<PARTICLETYPE<T> >::iterator p, int pInt,
ParticleSystem3D<T, PARTICLETYPE>& pSys)
{
Vector<T, 3> dampingForce = {T(0), T(0), T(0)} ;
for (int i = 0; i < 3; i++) {
dampingForce[i] = - 8 * M_PI * pow(p->getRad(), 3.) * _dynVisc * p->getAVel()[i] * _frictionFac ;
p->getTorque()[i] += dampingForce[i] ;
}
}
}
#endif // LinearDampingForceForMagDipoleMoment3D_HH
|
