olb::equilibria::Chopard::type< DESCRIPTOR, MOMENTA > Struct Template Reference

#include <equilibrium.h>

Collaboration diagram for olb::equilibria::Chopard::type< DESCRIPTOR, MOMENTA >:

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

Public Member Functions
template<typename RHO , typename U , typename VS2 , typename V = RHO>
auto	compute (int iPop, const RHO &rho, const U &u, VS2 vs2=V{1}/descriptors::invCs2< V, DESCRIPTOR >()) any_platform
template<typename CELL , typename PARAMETERS , typename FEQ , typename V = typename CELL::value_t>
CellStatistic< V >	compute (CELL &cell, PARAMETERS &parameters, FEQ &fEq) any_platform

Detailed Description

template<typename DESCRIPTOR, typename MOMENTA>
struct olb::equilibria::Chopard::type< DESCRIPTOR, MOMENTA >

Definition at line 216 of file equilibrium.h.

Member Typedef Documentation

MomentaF

template<typename DESCRIPTOR , typename MOMENTA >

using olb::equilibria::Chopard::type< DESCRIPTOR, MOMENTA >::MomentaF = typename MOMENTA::template type<DESCRIPTOR>

Definition at line 217 of file equilibrium.h.

Member Function Documentation

compute() [1/2]

template<typename DESCRIPTOR , typename MOMENTA >

template<typename CELL , typename PARAMETERS , typename FEQ , typename V = typename CELL::value_t>

CellStatistic< V > olb::equilibria::Chopard::type< DESCRIPTOR, MOMENTA >::compute ( CELL & cell, PARAMETERS & parameters, FEQ & fEq )

inline

Definition at line 242 of file equilibrium.h.

                                                                                        {
      V rho, u[DESCRIPTOR::d] { };
      MomentaF().computeRhoU(cell, rho, u);
      const V vs2 = parameters.template get<SPEED_OF_SOUND>();
      for (int iPop=0; iPop < DESCRIPTOR::q; ++iPop) {
        fEq[iPop] = compute(iPop, rho, u, vs2);
      }
      return {rho, util::normSqr<V,DESCRIPTOR::d>(u)};
    };

References olb::equilibria::Chopard::type< DESCRIPTOR, MOMENTA >::compute().

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compute() [2/2]

template<typename DESCRIPTOR , typename MOMENTA >

template<typename RHO , typename U , typename VS2 , typename V = RHO>

auto olb::equilibria::Chopard::type< DESCRIPTOR, MOMENTA >::compute ( int iPop, const RHO & rho, const U & u, VS2 vs2 = V{1} / descriptors::invCs2<V,DESCRIPTOR>() )

inline

Definition at line 221 of file equilibrium.h.

                                                                  {1} / descriptors::invCs2<V,DESCRIPTOR>()) any_platform {
      const V uSqr = util::normSqr<V,DESCRIPTOR::d>(u);
      if (iPop==0) {
        return rho * (V{1} - vs2 * descriptors::invCs2<V,DESCRIPTOR>()*(V{1}-descriptors::t<V,DESCRIPTOR>(0))
                           - descriptors::t<V,DESCRIPTOR>(0)/V{2}*descriptors::invCs2<V,DESCRIPTOR>()*uSqr)
               - descriptors::t<V,DESCRIPTOR>(0);
      }
      else {
        V c_u{};
        for (int iD=0; iD < DESCRIPTOR::d; ++iD) {
          c_u += descriptors::c<DESCRIPTOR>(iPop,iD)*u[iD];
        }
        return rho * descriptors::t<V,DESCRIPTOR>(iPop) * descriptors::invCs2<V,DESCRIPTOR>()
                   * (vs2 + c_u
                      + descriptors::invCs2<V,DESCRIPTOR>() / V{2} * c_u*c_u
                      - uSqr / V{2})
          - descriptors::t<V,DESCRIPTOR>(iPop);
      }
    }

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

• src/dynamics/equilibrium.h