Diffusion_supplementaire_echelle_temp_turb_VDF.cpp

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#include <Diffusion_supplementaire_echelle_temp_turb_VDF.h>
 
#include <Echelle_temporelle_turbulente.h>
#include <face_to_elem_VDF.h>
#include <Op_Dift_Multiphase_VDF_Elem.h>
#include <Convection_Diffusion_std.h>
#include <Champ_Inc_P0_base.h>
#include <Domaine_Cl_VDF.h>
#include <Pb_Multiphase.h>
#include <Domaine_VDF.h>
#include <Dirichlet.h>
 
#include <cmath>
#include <vector>
 
Implemente_instanciable(Diffusion_supplementaire_echelle_temp_turb_VDF,"Diffusion_supplementaire_lin_echelle_temp_turb_VDF_P0_VDF|Diffusion_supplementaire_echelle_temp_turb_VDF_P0_VDF", Source_Diffusion_supplementaire_echelle_temp_turb);
 
Sortie& Diffusion_supplementaire_echelle_temp_turb_VDF::printOn(Sortie& os) const {  return Source_Diffusion_supplementaire_echelle_temp_turb::printOn(os);}
 
Entree& Diffusion_supplementaire_echelle_temp_turb_VDF::readOn(Entree& is) { return Source_Diffusion_supplementaire_echelle_temp_turb::readOn(is);}
 
void Diffusion_supplementaire_echelle_temp_turb_VDF::ajouter_blocs(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl) const
{
  const Domaine_VDF& domaine = ref_cast(Domaine_VDF, equation().domaine_dis());
  const Domaine_Cl_VDF& zcl = ref_cast(Domaine_Cl_VDF, equation().domaine_Cl_dis());
  const Champ_Inc_P0_base& tau = ref_cast(Champ_Inc_P0_base, equation().inconnue());
  const DoubleTab& tab_tau = semi_impl.count("tau") ? semi_impl.at("tau") : tau.passe();
  const DoubleTab& nu_turb = ref_cast(Op_Dift_Multiphase_VDF_Elem, equation().operateur(0).l_op_base()).get_diffusivite_turbulente();
  const DoubleTab& nu_visc = ref_cast(Convection_Diffusion_std, equation()).diffusivite_pour_transport().passe();
 
  const DoubleTab& xp = domaine.xp();
  const DoubleTab& xv = domaine.xv();
 
  const DoubleVect& pe = equation().milieu().porosite_elem();
  const DoubleVect& ve = domaine.volumes();
 
  const int N = tab_tau.dimension(1);
  const int ne = domaine.nb_elem();
  const int ne_tot = domaine.nb_elem_tot();
  const int nf_tot = domaine.nb_faces_tot();
  const int D = dimension;
 
  /* Calcul de grad de racine de tau aux faces */
  DoubleTrav grad_f_sqrt_tau(nf_tot, N);
  DoubleTrav sqrt_tau(ne_tot, N);
  for (int e = 0; e < ne_tot ; e++)
    for (int n = 0; n < N; n++)
      sqrt_tau(e,n) = std::sqrt(std::max(0., tab_tau(e,n)));
 
  assert (tab_tau.dimension_tot(0) == ne_tot);
  const Convection_diffusion_turbulence_multiphase& eq_tau = ref_cast(Convection_diffusion_turbulence_multiphase, tau.equation());
  const Operateur_Grad& Op_Grad_tau = eq_tau.operateur_gradient_inconnue();
  // compute grad(sqrt(tau)) at faces ; Les CL sont des Dirichlet nulles, des symetries ou des Dirichlet non nulles => on devra corriger les dirichlet non nulles
  Op_Grad_tau.calculer(sqrt_tau,grad_f_sqrt_tau);
 
  // Boucle sur les bords pour corriger la contribution des cl de dirichlet non nulles au gradient
  for (int n_bord = 0; n_bord < domaine.nb_front_Cl(); n_bord++)
    for (int k = 0; k < N; k++)
      {
        const Cond_lim& la_cl = zcl.les_conditions_limites(n_bord);
        const Front_VF& le_bord = ref_cast(Front_VF, la_cl->frontiere_dis());
        const int ndeb = le_bord.num_premiere_face();
        const int nfin = ndeb + le_bord.nb_faces();
 
        if (sub_type(Dirichlet, la_cl.valeur())) // Cas CL Dirichlet
          for (int num_face = ndeb, num_face_cl = 0; num_face < nfin; num_face++, num_face_cl++)
            {
              int n0 = domaine.face_voisins(num_face, 0);
              if (n0 < 0)
                n0 = domaine.face_voisins(num_face, 1);
              const int ori = domaine.orientation(num_face);
              const double val = ref_cast(Dirichlet, la_cl.valeur()).val_imp(num_face_cl, k);
              grad_f_sqrt_tau(num_face, k) += - val/(xp(n0, ori) - xv(num_face, ori));
              grad_f_sqrt_tau(num_face, k) -= - std::sqrt(val)/(xp(n0, ori) - xv(num_face, ori));
            }
      }
 
  /* On interpole les champs aux elements */
  DoubleTab grad_e_sqrt_tau(ne_tot, N, D);
  face_to_elem_VDF(domaine, grad_f_sqrt_tau, grad_e_sqrt_tau);
 
  // On remplit le second membre
  for(int e = 0; e < ne; e++)
    for (int n = 0; n < N; n++)
      {
        // Second membre
        const double fac = pe(e)*ve(e);
        double secmem_en = 0;
 
        for (int d = 0; d < D; d++)
          secmem_en += grad_e_sqrt_tau(e, n, d) * grad_e_sqrt_tau(e, n, d);
 
        secmem(e, n) += fac * -8  * (nu_visc(e, n) + nu_turb(e, n)) * secmem_en;
      }
}