ESPResSo
Extensible Simulation Package for Research on Soft Matter Systems
Loading...
Searching...
No Matches
Viscous.hpp
Go to the documentation of this file.
1/*
2 * Copyright (C) 2010-2022 The ESPResSo project
3 *
4 * This file is part of ESPResSo.
5 *
6 * ESPResSo is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * ESPResSo is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#ifndef CORE_CONSTRAINTS_DETAIL_VISCOUS_HPP
20#define CORE_CONSTRAINTS_DETAIL_VISCOUS_HPP
21
22#include <utils/Vector.hpp>
23
24namespace FieldCoupling {
25namespace Coupling {
26class Viscous {
27 double m_gamma;
28
29public:
30 static constexpr bool is_linear = true;
31
32 Viscous(double gamma) : m_gamma(gamma) {}
33 double &gamma() { return m_gamma; }
34 double const &gamma() const { return m_gamma; }
35
36 template <typename Particle>
38 Utils::Vector3d const &field) const {
39 return m_gamma * (field - p.v());
40 }
41};
42} // namespace Coupling
43} // namespace FieldCoupling
44
45#endif
Vector implementation and trait types for boost qvm interoperability.
double const & gamma() const
Definition Viscous.hpp:34
Utils::Vector3d operator()(Particle const &p, Utils::Vector3d const &field) const
Definition Viscous.hpp:37
static constexpr bool is_linear
Definition Viscous.hpp:30
Struct holding all information for one particle.
Definition Particle.hpp:395
auto const & v() const
Definition Particle.hpp:433