Paroi_std_scal_hyd_EF.cpp

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#include <Paroi_std_scal_hyd_EF.h>
#include <Paroi_std_hyd_EF.h>
#include <Probleme_base.h>
#include <Champ_Uniforme.h>
#include <Dirichlet_paroi_fixe.h>
#include <Dirichlet_paroi_defilante.h>
#include <Champ_Uniforme_Morceaux.h>
#include <Champ_Fonc_Tabule.h>
#include <Fluide_base.h>
#include <Modele_turbulence_hyd_base.h>
#include <Convection_Diffusion_Concentration.h>
#include <Modele_turbulence_scal_base.h>
#include <Constituant.h>
#include <SFichier.h>
#include <Param.h>
#include <Paroi_decalee_Robin.h>
 
 
// XD loi_standard_hydr_scalaire_EF objet_u loi_standard_hydr_scalaire_EF BRACE Standard wall function for the EF
// XD_CONT discretisation.
Implemente_instanciable_sans_constructeur(Paroi_std_scal_hyd_EF,"loi_standard_hydr_scalaire_EF",Paroi_scal_hyd_base_EF);
 
// XD loi_expert_scalaire_EF objet_u loi_expert_scalaire_EF BRACE Expert scalar wall function for EF discretisation.
Implemente_instanciable(Loi_expert_scalaire_EF,"Loi_expert_scalaire_EF",Paroi_std_scal_hyd_EF);
 
 
Sortie& Paroi_std_scal_hyd_EF::printOn(Sortie& s) const
{
  return s << que_suis_je() << " " << le_nom();
}
 
 
Entree& Paroi_std_scal_hyd_EF::readOn(Entree& s)
{
  return s ;
}
 
 
Sortie& Loi_expert_scalaire_EF::printOn(Sortie& s) const
{
  return s;
}
 
 
Entree& Loi_expert_scalaire_EF::readOn(Entree& s)
{
  Param param(que_suis_je());
  param.ajouter("prdt_sur_kappa", &Prdt_sur_kappa_); // XD_ADD_P double
  // XD_CONT Prandtl number over von Karman constant for the wall function (default = 2.12)
  // [2026-01-23 ven.] TODO: change this parameter into a boolean
  param.ajouter("calcul_ldp_en_flux_impose", &calcul_ldp_en_flux_impose_); // XD_ADD_P int
  // XD_CONT Flag to use the wall function with a flux-based formulation (default = 0)
  param.ajouter_condition("(value_of_calcul_ldp_en_flux_impose_eq_0)_or_(value_of_calcul_ldp_en_flux_impose_eq_1)", "calcul_ldp_en_flux_impose must be 0 or 1");
  param.lire_avec_accolades_depuis(s);
  return s ;
}
 
 
int Paroi_std_scal_hyd_EF::init_lois_paroi()
{
  return (Paroi_scal_hyd_base_EF::init_lois_paroi() & init_lois_paroi_scalaire());
}
 
int Paroi_std_scal_hyd_EF::calculer_scal(Champ_Fonc_base& diffusivite_turb)
{
  const Domaine_EF& domaine_EF = ref_cast(Domaine_EF, le_dom_dis_.valeur());
  const IntTab& face_voisins = domaine_EF.face_voisins();
  DoubleTab& alpha_t = diffusivite_turb.valeurs();
  Equation_base& eqn_hydr = mon_modele_turb_scal->equation().probleme().equation(0);
  const Fluide_base& le_fluide = ref_cast(Fluide_base,eqn_hydr.milieu());
  const Champ_Don_base& ch_visco_cin = le_fluide.viscosite_cinematique();
  const DoubleTab& tab_visco = ch_visco_cin.valeurs();
  const DoubleVect& volumes_maille = domaine_EF.volumes();
  const DoubleVect& surfaces_face = domaine_EF.face_surfaces();
 
  int l_unif {0};
  double visco {-1};
 
  if (sub_type(Champ_Uniforme,ch_visco_cin))
    {
      l_unif = 1;
      visco = std::max(tab_visco(0,0),DMINFLOAT);
    }
 
  if ((!l_unif) && (tab_visco.local_min_vect()<DMINFLOAT))
    //   on ne doit pas changer tab_visco ici !
    {
      Cerr << "In Paroi_std_scal_hyd_EF::init_lois_paroi : visco = " << tab_visco.local_min_vect() << " <= 0 ? " << finl;
      throw;
    }
  //    tab_visco+=DMINFLOAT;
 
  double dist=-1;
  const RefObjU& modele_turbulence_hydr = eqn_hydr.get_modele(TURBULENCE);
  const Modele_turbulence_hyd_base& le_modele = ref_cast(Modele_turbulence_hyd_base,modele_turbulence_hydr.valeur());
  const Turbulence_paroi_base& loi = le_modele.loi_paroi();
  const DoubleVect& tab_u_star = loi.tab_u_star();
  const Equation_base& eqn = mon_modele_turb_scal->equation();
  // Recuperation de la diffusivite en fonction du type d'equation:
  const bool schmidt = (sub_type(Convection_Diffusion_Concentration,eqn) ? true : false);
  const Champ_Don_base& alpha = (schmidt==1?ref_cast(Convection_Diffusion_Concentration,eqn).constituant().diffusivite_constituant():le_fluide.diffusivite());
  const bool alpha_uniforme = (sub_type(Champ_Uniforme,alpha) ? true : false);
 
  // [2026-01-23 ven.] TODO: this should be done once at the beginning, extract it and put it in completer
  // Verifications (l'algorithme n'est valable que si d_alpha est le meme pour chaque constituant)
  if (schmidt)
    {
      if (alpha_uniforme)
        {
          const double d_alpha = alpha.valeurs()(0,0);
          assert(ref_cast(Convection_Diffusion_Concentration, eqn).constituant().nb_constituants() == alpha.valeurs().line_size());
          for (int nc = 0; nc < alpha.valeurs().line_size(); nc++)
            if (d_alpha!=alpha.valeurs()(0,nc))
              Process::exit("Law of the wall are not implemented yet for constituants with different diffusion coefficients.");
        }
      else
        {
          for (int elem = 0; elem < alpha.valeurs().dimension(0); elem++)
            {
              const double d_alpha = alpha.valeurs()(elem,0);
              for (int nc = 0; nc < alpha.valeurs().line_size(); nc++)
                if (d_alpha != alpha.valeurs()(elem, nc))
                  Process::exit("Law of the wall are not implemented yet for constituants with different diffusion coefficients.");
            }
        }
    }
 
  // Boucle sur les bords:
  for (int n_bord = 0; n_bord < domaine_EF.nb_front_Cl(); n_bord++)
    {
      // pour chaque condition limite on regarde son type
      // On applique les lois de paroi uniquement
      // aux voisinages des parois
      const Cond_lim& la_cl = le_dom_Cl_dis_->les_conditions_limites(n_bord);
      if ( (sub_type(Dirichlet_paroi_fixe, la_cl.valeur()))
           || (sub_type(Dirichlet_paroi_defilante, la_cl.valeur()))
           || (sub_type(Symetrie, la_cl.valeur()))
           || (sub_type(Paroi_decalee_Robin, la_cl.valeur())))
        {
          const Front_VF& le_bord = ref_cast(Front_VF, la_cl->frontiere_dis());
          const int size = le_bord.nb_faces();
          DoubleVect& dist_equiv = equivalent_distance_[n_bord];
 
          for (int ind_face = 0; ind_face < size; ind_face++)
            {
              const int num_face = le_bord.num_face(ind_face);
              // We search the element touching the wall on the face "num_face".
              int elem = face_voisins(num_face, 0);
              if (elem == -1)
                elem = face_voisins(num_face, 1);
 
              // Calcul de la distance normale de la premiere maille
              if (axi)
                Process::exit("Error: the axisymmetric EF case is not yet implemented in the scalar wall-function.");
              else if (sub_type(Paroi_decalee_Robin,la_cl.valeur()))
                {
                  const Paroi_decalee_Robin& Paroi = ref_cast(Paroi_decalee_Robin, la_cl.valeur());
                  dist = Paroi.get_delta();
                }
              else
                {
                  // We calculate the distance to the wall of the center of gravity of the element.
                  // Expression de dist en fonction  du volume de l element et de l aire de la face
                  dist = volumes_maille(elem)/surfaces_face(num_face);
                }
 
              // Alex. C. : 11/04/2003
              const double u_star = tab_u_star(num_face);
              const double d_alpha = (alpha_uniforme ? alpha.valeurs()(0, 0) : alpha.valeurs()(elem, 0));
 
              if (u_star == 0 || d_alpha==0)
                dist_equiv[ind_face] = dist;
              else
                {
                  // calcul de la viscosite en y+
                  const double d_visco = (l_unif ? visco : tab_visco(elem,0));
                  const double Pr = d_visco/d_alpha;
                  const double y_plus = dist*u_star/d_visco;
                  dist_equiv[ind_face] = (d_alpha + alpha_t(elem)) * T_plus(y_plus,Pr, Prdt_sur_kappa_) / u_star;
                }
            }
          dist_equiv.echange_espace_virtuel();
        }
    }
  return 1;
}
 
int Paroi_std_scal_hyd_EF::init_lois_paroi_scalaire()
{
  return 1;
}