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

#include <collision.h>

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

Definition at line 154 of file collision.h.

Member Typedef Documentation

EquilibriumF

template<typename DESCRIPTOR , typename MOMENTA , typename EQUILIBRIUM >

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

Definition at line 156 of file collision.h.

MomentaF

template<typename DESCRIPTOR , typename MOMENTA , typename EQUILIBRIUM >

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

Definition at line 155 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::ConstRhoBGK::type< DESCRIPTOR, MOMENTA, EQUILIBRIUM >::apply ( CELL & cell, PARAMETERS & parameters )

inline

Definition at line 159 of file collision.h.

                                                                            {
      V fEq[DESCRIPTOR::q];
      const auto statistic = EquilibriumF().compute(cell, parameters, fEq);
 
      V deltaRho = V{1} - parameters.template get<statistics::AVERAGE_RHO>();
      V ratioRho = V{1} + deltaRho / statistic.rho;
 
      const V omega = parameters.template get<descriptors::OMEGA>();
 
      for (int iPop=0; iPop < DESCRIPTOR::q; ++iPop) {
        cell[iPop] = ratioRho * (fEq[iPop] + descriptors::t<V,DESCRIPTOR>(iPop))
                   - descriptors::t<V,DESCRIPTOR>(iPop)
                   + (V{1} - omega) * (cell[iPop] - fEq[iPop]);
      }
      return {statistic.rho+deltaRho, statistic.uSqr};
    };

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

• src/dynamics/collision.h