olb::collision::RLB::type< DESCRIPTOR, MOMENTA, EQUILIBRIUM > Struct Template Reference

#include <collision.h>

Collaboration diagram for olb::collision::RLB::type< DESCRIPTOR, MOMENTA, EQUILIBRIUM >:

Public Types
using	MomentaF = typename MOMENTA::template type<DESCRIPTOR>
using	EquilibriumF = typename EQUILIBRIUM::template type<DESCRIPTOR,MOMENTA>

Public Member Functions
template<CONCEPT(MinimalCell) CELL, typename PARAMETERS , typename V = typename CELL::value_t>
CellStatistic< V >	apply (CELL &cell, PARAMETERS &parameters) any_platform

Detailed Description

template<typename DESCRIPTOR, typename MOMENTA, typename EQUILIBRIUM>
struct olb::collision::RLB::type< DESCRIPTOR, MOMENTA, EQUILIBRIUM >

Definition at line 86 of file collision.h.

Member Typedef Documentation

EquilibriumF

template<typename DESCRIPTOR , typename MOMENTA , typename EQUILIBRIUM >

using olb::collision::RLB::type< DESCRIPTOR, MOMENTA, EQUILIBRIUM >::EquilibriumF = typename EQUILIBRIUM::template type<DESCRIPTOR,MOMENTA>

Definition at line 88 of file collision.h.

MomentaF

template<typename DESCRIPTOR , typename MOMENTA , typename EQUILIBRIUM >

using olb::collision::RLB::type< DESCRIPTOR, MOMENTA, EQUILIBRIUM >::MomentaF = typename MOMENTA::template type<DESCRIPTOR>

Definition at line 87 of file collision.h.

Member Function Documentation

apply()

template<typename DESCRIPTOR , typename MOMENTA , typename EQUILIBRIUM >

template<CONCEPT(MinimalCell) CELL, typename PARAMETERS , typename V = typename CELL::value_t>

CellStatistic< V > olb::collision::RLB::type< DESCRIPTOR, MOMENTA, EQUILIBRIUM >::apply ( CELL & cell, PARAMETERS & parameters )

inline

Definition at line 91 of file collision.h.

                                                                            {
      V pi[util::TensorVal<DESCRIPTOR>::n] { };
      MomentaF().computeStress(cell, pi);
      V fEq[DESCRIPTOR::q] { };
      const auto statistic = EquilibriumF().compute(cell, parameters, fEq);
      const V omega = parameters.template get<descriptors::OMEGA>();
      cell[0] = fEq[0] + (V{1} - omega) * equilibrium<DESCRIPTOR>::template fromPiToFneq<V>(0, pi);
      for (int iPop=1; iPop <= DESCRIPTOR::q/2; ++iPop) {
        cell[iPop] = fEq[iPop];
        cell[iPop+DESCRIPTOR::q/2] = fEq[iPop+DESCRIPTOR::q/2];
        V fNeq = (V{1} - omega) * equilibrium<DESCRIPTOR>::template fromPiToFneq<V>(iPop, pi);
        cell[iPop] += fNeq;
        cell[iPop+DESCRIPTOR::q/2] += fNeq;
      }
      return statistic;
    };

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The documentation for this struct was generated from the following file:

• src/dynamics/collision.h