/usr/include/palabos/latticeBoltzmann/advectionDiffusionLattices.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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | /* 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/>.
*/
/** \file
* Descriptors for advection-diffusion physics. In principle, thanks
* to the fact that the Palabos code is generic, it is sufficient to
* write a new descriptor when a new type of lattice is to be used.
* -- header file
*/
#ifndef ADVECTION_DIFFUSION_LATTICES_H
#define ADVECTION_DIFFUSION_LATTICES_H
#include "core/globalDefs.h"
#include "latticeBoltzmann/externalFields.h"
#include "latticeBoltzmann/roundOffPolicy.h"
#include "latticeBoltzmann/nearestNeighborLattices3D.h"
#include <vector>
namespace plb {
/// Descriptors for the 2D and 3D lattices.
/** \warning Attention: The lattice directions must always be ordered in
* such a way that c[i] = -c[i+(q-1)/2] for i=1..(q-1)/2, and c[0] = 0 must
* be the rest velocity. Furthermore, the velocities c[i] for i=1..(q-1)/2
* must verify
* - in 2D: (c[i][0]<0) || (c[i][0]==0 && c[i][1]<0)
* - in 3D: (c[i][0]<0) || (c[i][0]==0 && c[i][1]<0)
* || (c[i][0]==0 && c[i][1]==0 && c[i][2]<0)
* Otherwise some of the code will work erroneously, because the
* aformentioned relations are taken as given to enable a few
* optimizations.
*/
namespace descriptors
{
//===========================================================================//
//=================== AdvectionDiffusion Lattice Descriptors=================//
//===========================================================================//
/// D2Q5 lattice
template <typename T> struct D2Q5Constants
{
enum { d = 2, q = 5 }; ///< number of dimensions/distr. functions
static const T invD; ///< 1 / (number of dimensions)
static const int vicinity; ///< size of neighborhood
static const int c[q][d]; ///< lattice directions
static const int cNormSqr[q]; ///< norm-square of the vector c
static const T t[q]; ///< lattice weights
static const T cs2; ///< lattice constant cs2 (in BGK, this is the square-speed-of-sound)
static const T invCs2; ///< 1 / cs2
};
template <typename T> struct D2Q5DescriptorBase
: public D2Q5Constants<T>, public DefaultRoundOffPolicy<T>
{
typedef D2Q5DescriptorBase<T> BaseDescriptor;
enum { numPop=D2Q5Constants<T>::q };
};
/// AD D2Q5 lattice
template <typename T> struct AdvectionDiffusionD2Q5Descriptor
: public D2Q5DescriptorBase<T>, public Velocity2dDescriptorBase
{
static const char name[];
};
template <typename T> struct AdvectionDiffusionWithSourceD2Q5Descriptor
: public D2Q5DescriptorBase<T>, public VelocityAndScalar2dBase
{
static const char name[];
};
/// D3Q7 lattice
template <typename T> struct D3Q7Constants {
enum { d = 3, q = 7 }; ///< number of dimensions/distr. functions
static const T invD; ///< 1 / (number of dimensions)
static const int vicinity; ///< size of neighborhood
static const int c[q][d]; ///< lattice directions
static const int cNormSqr[q]; ///< norm-square of the vector c
static const T t[q]; ///< lattice weights
static const T cs2; ///< lattice constant cs2 (in BGK, this is the square-speed-of-sound)
static const T invCs2; ///< 1 / cs2
};
template <typename T> struct D3Q7DescriptorBase
: public D3Q7Constants<T>, public DefaultRoundOffPolicy<T>
{
typedef D3Q7DescriptorBase<T> BaseDescriptor;
enum { numPop=D3Q7Constants<T>::q };
};
template <typename T> struct AdvectionDiffusionD3Q7Descriptor
: public D3Q7DescriptorBase<T>, public Velocity3dBase
{
static const char name[];
};
template <typename T> struct AdvectionDiffusionWithSourceD3Q7Descriptor
: public D3Q7DescriptorBase<T>, public VelocityAndScalar3dBase
{
static const char name[];
};
/// D3Q19 lattice
template <typename T> struct AdvectionDiffusionD3Q19Descriptor
: public D3Q19DescriptorBase<T>, public Velocity3dBase
{
static const char name[];
};
template <typename T> struct AdvectionDiffusionWithSourceD3Q19Descriptor
: public D3Q19DescriptorBase<T>, public VelocityAndScalar3dBase
{
static const char name[];
};
} // namespace descriptors
} // namespace plb
#endif // ADVECTION_DIFFUSION_LATTICES_H
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