/usr/include/palabos/complexDynamics/mrtDynamics.h is in libplb-dev 1.5~r1+repack1-3.
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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 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 | /* This file is part of the Palabos library.
*
* Copyright (C) 2011-2015 FlowKit Sarl
* Route d'Oron 2
* 1010 Lausanne, Switzerland
* E-mail contact: contact@flowkit.com
*
* The most recent release of Palabos can be downloaded at
* <http://www.palabos.org/>
*
* The library Palabos is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* The library 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* Orestis Malaspinas contributed this code.
*/
/** \file
* This object is a MRT LB dynamics as described in D.Yu et al. in
* Progress in Aerospace Sciences 39 (2003) 329-367
*
* The full list of implemented MRTdynamics is:
*
* In mrtDynamics.h:
*
* - MRTdynamics: "The one with rho in front of equilibrium".
* - IncMRTdynamics: "The one with rho0 in front of equilibrium".
*
* In smagorinskyDynamics.h:
*
* - SmagorinskyMrtDynamics: "The classical, naive implementation".
* - ConsistentSmagorinskyMRTdynamics: Consistent according to
* Orestis' model: doesn't mix the stress modes with the
* other ones when you change the relaxation time.
* - ConsistentSmagorinskyIncMRTdynamics
*
* In externalForceMRTdynamics.h:
*
* - GuoExternalForceMRTdynamics
* - GuoExternalForceSmagorinskyMRTdynamics
* - GuoExternalForceSmagorinskyIncMRTdynamics
* - GuoExternalForceConsistentSmagorinskyMRTdynamics
* - GuoExternalForceConsistentSmagorinskyIncMRTdynamics
*
*/
#ifndef MRT_DYNAMICS_H
#define MRT_DYNAMICS_H
#include "core/globalDefs.h"
#include "basicDynamics/isoThermalDynamics.h"
namespace plb {
/// Implementation of the MRT collision step
template<typename T, template<typename U> class Descriptor>
class MRTdynamics : public IsoThermalBulkDynamics<T,Descriptor> {
public:
/* *************** Construction / Destruction ************************ */
MRTdynamics(T omega_);
/// Clone the object on its dynamic type.
virtual MRTdynamics<T,Descriptor>* clone() const;
/// Return a unique ID for this class.
virtual int getId() const;
/* *************** Collision and Equilibrium ************************* */
/// Implementation of the collision step
virtual void collide(Cell<T,Descriptor>& cell,
BlockStatistics& statistics_);
/// Implementation of the collision step, with imposed macroscopic variables
virtual void collideExternal(Cell<T,Descriptor>& cell, T rhoBar,
Array<T,Descriptor<T>::d> const& j, T thetaBar, BlockStatistics& stat);
/// Compute equilibrium distribution function
virtual T computeEquilibrium(plint iPop, T rhoBar, Array<T,Descriptor<T>::d> const& j,
T jSqr, T thetaBar=T()) const;
private:
static int id;
};
/// Implementation of incompressible MRT dynamics.
/** This is the MRT equivalent of IncBGKdynamics: the "rho" moment of the
* populations appears only as a pressure term in the equilibrium, while
* the other terms are multiplied by the constant rho0.
**/
template<typename T, template<typename U> class Descriptor>
class IncMRTdynamics : public IsoThermalBulkDynamics<T,Descriptor> {
public:
/* *************** Construction / Destruction ************************ */
IncMRTdynamics(T omega_);
/// Clone the object on its dynamic type.
virtual IncMRTdynamics<T,Descriptor>* clone() const;
/// Return a unique ID for this class.
virtual int getId() const;
/* *************** Collision and Equilibrium ************************* */
/// Implementation of the collision step
virtual void collide(Cell<T,Descriptor>& cell,
BlockStatistics& statistics_);
/// Implementation of the collision step, with imposed macroscopic variables
virtual void collideExternal(Cell<T,Descriptor>& cell, T rhoBar,
Array<T,Descriptor<T>::d> const& j, T thetaBar, BlockStatistics& stat);
/// Compute equilibrium distribution function
virtual T computeEquilibrium(plint iPop, T rhoBar, Array<T,Descriptor<T>::d> const& j,
T jSqr, T thetaBar=T()) const;
virtual bool velIsJ() const;
/* *************** Macroscopic variables ***************************** */
/// Velocity is equal to j, not u.
virtual void computeVelocity( Cell<T,Descriptor> const& cell,
Array<T,Descriptor<T>::d>& u ) const;
private:
static int id;
};
} // namespace plb
#endif // MRT_DYNAMICS_H
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