walberla::lbm::collision_model::D3Q19MRT Class Reference

Detailed Description

Implementation of LB collision model MRT [9].

Instead of providing all relaxation parameters, you can also provide just two. There are two variants, one that matches TRT [13] and one by Pan et al. [24]. Only works with D3Q19!

#include <CollisionModel.h>

Public Types
using	tag = MRT_tag

Public Member Functions
	D3Q19MRT (const real_t _s1, const real_t _s2, const real_t _s4, const real_t _s9, const real_t _s10, const real_t _s16, const uint_t _level=uint_t(0))
	{ 0, _s1, _s2, 0, _s4, 0, _s4, 0, _s4, _s9, _s10, _s9, _s10, _s9, _s9, _s9, _s16, _s16, _s16 } { 0, s_e, s_eps, 0, s_q, 0, s_q, 0, s_q, s_nu, s_pi, s_nu, s_pi, s_nu, s_nu, s_nu, s_m, s_m, s_m } More...
void	pack (mpi::SendBuffer &buffer) const
void	unpack (mpi::RecvBuffer &buffer)
void	configure (IBlock &block, StructuredBlockStorage &sbs)
	Adapts the relaxation parameters to the "right", level-dependent parameters once "configure" is called. More...
real_t	s0 () const
real_t	s1 () const
real_t	s2 () const
real_t	s3 () const
real_t	s4 () const
real_t	s5 () const
real_t	s6 () const
real_t	s7 () const
real_t	s8 () const
real_t	s9 () const
real_t	s10 () const
real_t	s11 () const
real_t	s12 () const
real_t	s13 () const
real_t	s14 () const
real_t	s15 () const
real_t	s16 () const
real_t	s17 () const
real_t	s18 () const
real_t	s (const uint_t index) const
real_t	s_e () const
real_t	s_eps () const
real_t	s_q () const
real_t	s_nu () const
real_t	s_pi () const
real_t	s_m () const
real_t	omega () const
real_t	omega (const cell_idx_t, const cell_idx_t, const cell_idx_t, const Vector3< real_t > &=Vector3< real_t >(), const real_t=real_t(1)) const
real_t	omega_bulk () const
real_t	omega_odd () const
real_t	viscosity () const
real_t	viscosity (const cell_idx_t, const cell_idx_t, const cell_idx_t) const
real_t	viscosity (const uint_t _level) const
uint_t	level () const

Static Public Member Functions
static D3Q19MRT	constructPan (const real_t lambda_e, const real_t lambda_d, const uint_t _level=uint_t(0))
static D3Q19MRT	constructPanWithMagicNumber (const real_t omega, const real_t magicNumber=threeSixteenth, const uint_t _level=uint_t(0))
	Model by Pan et al., An evaluation of lattice Boltzmann schemes for porous medium flow simulation. http://dx.doi.org/10.1016/j.compfluid.2005.03.008. More...
static D3Q19MRT	constructTRT (const real_t lambda_e, const real_t lambda_d, const uint_t _level=uint_t(0))
	Supposed to be identical to TRT ! More...
static D3Q19MRT	constructTRTWithMagicNumber (const real_t omega, const real_t magicNumber=threeSixteenth, const uint_t _level=uint_t(0))

Static Public Attributes
static const real_t	threeSixteenth = real_t(3) / real_t(16)

Private Member Functions
	D3Q19MRT ()
void	initTRT (const real_t lambda_e, const real_t lambda_d, const uint_t _level=uint_t(0))
void	initPan (const real_t lambda_e, const real_t lambda_d, const uint_t _level=uint_t(0))

Private Attributes
real_t	s_ [19]
real_t	viscosity_
uint_t	level_

Member Typedef Documentation

tag

using walberla::lbm::collision_model::D3Q19MRT::tag = MRT_tag

Constructor & Destructor Documentation

D3Q19MRT() [1/2]

walberla::lbm::collision_model::D3Q19MRT::D3Q19MRT ( const real_t  _s1, const real_t  _s2, const real_t  _s4, const real_t  _s9, const real_t  _s10, const real_t  _s16, const uint_t  _level = uint_t(0)  )

inline

{ 0, _s1, _s2, 0, _s4, 0, _s4, 0, _s4, _s9, _s10, _s9, _s10, _s9, _s9, _s9, _s16, _s16, _s16 } { 0, s_e, s_eps, 0, s_q, 0, s_q, 0, s_q, s_nu, s_pi, s_nu, s_pi, s_nu, s_nu, s_nu, s_m, s_m, s_m }

D3Q19MRT() [2/2]

walberla::lbm::collision_model::D3Q19MRT::D3Q19MRT ( )

inlineprivate

Member Function Documentation

configure()

void walberla::lbm::collision_model::D3Q19MRT::configure ( IBlock &  block, StructuredBlockStorage &  sbs  )

inline

Adapts the relaxation parameters to the "right", level-dependent parameters once "configure" is called.

constructPan()

static D3Q19MRT walberla::lbm::collision_model::D3Q19MRT::constructPan ( const real_t  lambda_e, const real_t  lambda_d, const uint_t  _level = uint_t(0)  )

inlinestatic

constructPanWithMagicNumber()

static D3Q19MRT walberla::lbm::collision_model::D3Q19MRT::constructPanWithMagicNumber ( const real_t  omega, const real_t  magicNumber = threeSixteenth, const uint_t  _level = uint_t(0)  )

inlinestatic

Model by Pan et al., An evaluation of lattice Boltzmann schemes for porous medium flow simulation. http://dx.doi.org/10.1016/j.compfluid.2005.03.008.

constructTRT()

static D3Q19MRT walberla::lbm::collision_model::D3Q19MRT::constructTRT ( const real_t  lambda_e, const real_t  lambda_d, const uint_t  _level = uint_t(0)  )

inlinestatic

Supposed to be identical to TRT !

constructTRTWithMagicNumber()

static D3Q19MRT walberla::lbm::collision_model::D3Q19MRT::constructTRTWithMagicNumber ( const real_t  omega, const real_t  magicNumber = threeSixteenth, const uint_t  _level = uint_t(0)  )

inlinestatic

initPan()

void walberla::lbm::collision_model::D3Q19MRT::initPan ( const real_t  lambda_e, const real_t  lambda_d, const uint_t  _level = uint_t(0)  )

inlineprivate

initTRT()

void walberla::lbm::collision_model::D3Q19MRT::initTRT ( const real_t  lambda_e, const real_t  lambda_d, const uint_t  _level = uint_t(0)  )

inlineprivate

level()

uint_t walberla::lbm::collision_model::D3Q19MRT::level ( ) const

inline

omega() [1/2]

real_t walberla::lbm::collision_model::D3Q19MRT::omega ( ) const

inline

omega() [2/2]

real_t walberla::lbm::collision_model::D3Q19MRT::omega ( const  cell_idx_t, const  cell_idx_t, const  cell_idx_t, const Vector3< real_t > &  = Vector3<real_t>(), const  real_t = real_t(1)  ) const

inline

omega_bulk()

real_t walberla::lbm::collision_model::D3Q19MRT::omega_bulk ( ) const

inline

omega_odd()

real_t walberla::lbm::collision_model::D3Q19MRT::omega_odd ( ) const

inline

pack()

void walberla::lbm::collision_model::D3Q19MRT::pack ( mpi::SendBuffer &  buffer ) const

inline

s()

real_t walberla::lbm::collision_model::D3Q19MRT::s ( const uint_t  index ) const

inline

s0()

real_t walberla::lbm::collision_model::D3Q19MRT::s0 ( ) const

inline

s1()

real_t walberla::lbm::collision_model::D3Q19MRT::s1 ( ) const

inline

s10()

real_t walberla::lbm::collision_model::D3Q19MRT::s10 ( ) const

inline

s11()

real_t walberla::lbm::collision_model::D3Q19MRT::s11 ( ) const

inline

s12()

real_t walberla::lbm::collision_model::D3Q19MRT::s12 ( ) const

inline

s13()

real_t walberla::lbm::collision_model::D3Q19MRT::s13 ( ) const

inline

s14()

real_t walberla::lbm::collision_model::D3Q19MRT::s14 ( ) const

inline

s15()

real_t walberla::lbm::collision_model::D3Q19MRT::s15 ( ) const

inline

s16()

real_t walberla::lbm::collision_model::D3Q19MRT::s16 ( ) const

inline

s17()

real_t walberla::lbm::collision_model::D3Q19MRT::s17 ( ) const

inline

s18()

real_t walberla::lbm::collision_model::D3Q19MRT::s18 ( ) const

inline

s2()

real_t walberla::lbm::collision_model::D3Q19MRT::s2 ( ) const

inline

s3()

real_t walberla::lbm::collision_model::D3Q19MRT::s3 ( ) const

inline

s4()

real_t walberla::lbm::collision_model::D3Q19MRT::s4 ( ) const

inline

s5()

real_t walberla::lbm::collision_model::D3Q19MRT::s5 ( ) const

inline

s6()

real_t walberla::lbm::collision_model::D3Q19MRT::s6 ( ) const

inline

s7()

real_t walberla::lbm::collision_model::D3Q19MRT::s7 ( ) const

inline

s8()

real_t walberla::lbm::collision_model::D3Q19MRT::s8 ( ) const

inline

s9()

real_t walberla::lbm::collision_model::D3Q19MRT::s9 ( ) const

inline

s_e()

real_t walberla::lbm::collision_model::D3Q19MRT::s_e ( ) const

inline

s_eps()

real_t walberla::lbm::collision_model::D3Q19MRT::s_eps ( ) const

inline

s_m()

real_t walberla::lbm::collision_model::D3Q19MRT::s_m ( ) const

inline

s_nu()

real_t walberla::lbm::collision_model::D3Q19MRT::s_nu ( ) const

inline

s_pi()

real_t walberla::lbm::collision_model::D3Q19MRT::s_pi ( ) const

inline

s_q()

real_t walberla::lbm::collision_model::D3Q19MRT::s_q ( ) const

inline

unpack()

void walberla::lbm::collision_model::D3Q19MRT::unpack ( mpi::RecvBuffer &  buffer )

inline

viscosity() [1/3]

real_t walberla::lbm::collision_model::D3Q19MRT::viscosity ( ) const

inline

viscosity() [2/3]

real_t walberla::lbm::collision_model::D3Q19MRT::viscosity ( const  cell_idx_t, const  cell_idx_t, const  cell_idx_t  ) const

inline

viscosity() [3/3]

real_t walberla::lbm::collision_model::D3Q19MRT::viscosity ( const uint_t  _level ) const

inline

Member Data Documentation

level_

uint_t walberla::lbm::collision_model::D3Q19MRT::level_

private

s_

real_t walberla::lbm::collision_model::D3Q19MRT::s_[19]

private

threeSixteenth

const real_t walberla::lbm::collision_model::D3Q19MRT::threeSixteenth = real_t(3) / real_t(16)

static

viscosity_

real_t walberla::lbm::collision_model::D3Q19MRT::viscosity_

private

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The documentation for this class was generated from the following files:

• /builds/administration/walberla-website/walberla/src/lbm/lattice_model/CollisionModel.h
• /builds/administration/walberla-website/walberla/src/lbm/lattice_model/CollisionModel.cpp