Source_Transport_Fluctuation_Temperature_W_VDF_Elem.cpp

/****************************************************************************
* Copyright (c) 2019, CEA
* All rights reserved.
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* 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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#include <Source_Transport_Fluctuation_Temperature_W_VDF_Elem.h>
#include <Convection_Diffusion_Temperature.h>
#include <Modele_turbulence_scal_base.h>
#include <Fluide_base.h>
#include <Probleme_base.h>
#include <TRUSTTrav.h>
#include <Dirichlet_entree_fluide_leaves.h>
#include <Champ_Uniforme.h>
#include <Domaine_VDF.h>
#include <Champ_Face_VDF.h>
#include <Domaine_Cl_VDF.h>
#include <Modele_turbulence_hyd_K_Eps_Bas_Reynolds.h>
#include <TRUSTTrav.h>
 
Implemente_instanciable_sans_constructeur(Source_Transport_Fluctuation_Temperature_W_VDF_Elem,"Source_Transport_Fluctuation_Temperature_W_VDF_P0_VDF",Source_base);
 
//// printOn
//
 
Sortie& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::printOn(Sortie& s ) const
{
  return s << que_suis_je() ;
}
 
 
//// readOn
//
 
Entree& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::readOn(Entree& is )
{
  Motcle accolade_ouverte("{");
  Motcle accolade_fermee("}");
  Motcle motlu;
 
  is >> motlu;
  if (motlu != accolade_ouverte)
    {
      Cerr << "On attendait { pour commencer a lire les constantes de Source_Transport_Fluctuation_Temperature_W" << finl;
      Process::exit();
    }
  Cerr << "Lecture des constantes de Source_Transport_Fluctuation_Temperature_W" << finl;
  Motcles les_mots(4);
  {
    les_mots[0] = "Ca";
    les_mots[1] = "Cb";
    les_mots[2] = "Cc";
    les_mots[3] = "Cd";
  }
  is >> motlu;
  while (motlu != accolade_fermee)
    {
      int rang=les_mots.search(motlu);
      switch(rang)
        {
        case 0 :
          {
            is >> Ca;
            break;
          }
        case 1 :
          {
            is >> Cb;
            break;
          }
        case 2 :
          {
            is >> Cc;
            break;
          }
        case 3 :
          {
            is >> Cd;
            break;
          }
        default :
          {
            Cerr << "On ne comprend pas le mot cle : " << motlu << "dans Source_Transport_Fluctuation_Temperature_W" << finl;
            Process::exit();
          }
        }
 
      is >> motlu;
    }
 
  return is ;
}
 
void Source_Transport_Fluctuation_Temperature_W_VDF_Elem::associer_pb(const Probleme_base& pb )
{
  eq_hydraulique = pb.equation(0);
  const Convection_Diffusion_Temperature& eqn_th =
    ref_cast(Convection_Diffusion_Temperature,pb.equation(1));
  eq_thermique = eqn_th;
  mon_eq_transport_Fluctu_Temp = ref_cast(Transport_Fluctuation_Temperature_W,equation());
  const Fluide_base& fluide = eq_thermique->fluide();
  beta_t = fluide.beta_t();
  gravite_ = fluide.gravite();
}
 
void Source_Transport_Fluctuation_Temperature_W_VDF_Elem::associer_domaines(const Domaine_dis_base& domaine_dis,
                                                                            const Domaine_Cl_dis_base& domaine_Cl_dis)
{
  le_dom_VDF = ref_cast(Domaine_VDF, domaine_dis);
  le_dom_Cl_VDF = ref_cast(Domaine_Cl_VDF, domaine_Cl_dis);
}
 
 
////////////////////////////////////////////////////////////
//
//   Methode pour determiner la production par le gradient
//   moyen de la temperature
////////////////////////////////////////////////////////////
 
DoubleTab& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::calculer_Prod_uteta_T(const Domaine_VDF& domaine_VDF,
                                                                                      const Domaine_Cl_VDF& zcl_VDF,
                                                                                      const DoubleTab& temper,
                                                                                      const  DoubleTab& u_teta,
                                                                                      DoubleTab& uteta_T) const
{
  int nb_faces= domaine_VDF.nb_faces();
  const Domaine& le_dom=domaine_VDF.domaine();
  int nb_faces_elem = le_dom.nb_faces_elem();
  IntTrav numfa(nb_faces_elem);
  const IntTab& les_elem_faces = domaine_VDF.elem_faces();
  DoubleTrav grad_T(nb_faces);
  int nb_elem = domaine_VDF.nb_elem();
  int n0,n1;
  double dist;
  int face;
  const IntTab& face_voisins = domaine_VDF.face_voisins();
  uteta_T = 0;
  const DoubleVect& porosite_face = equation().milieu().porosite_face();
  // on calcul tout d'abord le gradient de temperature par faces.
  // Traitement des faces internes
 
  int premiere_face_int=domaine_VDF.premiere_face_int();
 
  if (Objet_U::axi)
 
    for (face=premiere_face_int; face<nb_faces; face++)
      {
        n0 = face_voisins(face,0);
        n1 = face_voisins(face,1);
        dist = domaine_VDF.dist_norm_axi(face);
        grad_T[face] = (temper[n1] - temper[n0])/dist;
      }
  else
    for (face=premiere_face_int; face<nb_faces; face++)
      {
        n0 = face_voisins(face,0);
        n1 = face_voisins(face,1);
        dist = domaine_VDF.dist_norm(face);
        grad_T[face] = (temper[n1] - temper[n0])/dist;
      }
 
  // Traitement des conditions limites de type Entree_fluide_K_Eps_impose :
 
  for (int n_bord=0; n_bord<domaine_VDF.nb_front_Cl(); n_bord++)
    {
 
      const Cond_lim& la_cl = zcl_VDF.les_conditions_limites(n_bord);
 
      if (sub_type(Entree_fluide_temperature_imposee,la_cl.valeur()) )
        {
          const Entree_fluide_temperature_imposee& la_cl_diri=ref_cast(Entree_fluide_temperature_imposee,la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int ndeb = le_bord.num_premiere_face();
          int nfin = ndeb + le_bord.nb_faces();
          for (face=ndeb; face<nfin; face++)
            {
              double T_imp = la_cl_diri.val_imp(face-ndeb);
              n0 = face_voisins(face,0);
              n1 = face_voisins(face,1);
              if (Objet_U::axi)
                // dist = 2*domaine_VDF.dist_norm_bord_axi(face);
                dist = domaine_VDF.dist_norm_bord_axi(face);
              else
                dist = domaine_VDF.dist_norm_bord(face);
              if (n0 != -1)
                {
                  grad_T[face] = (T_imp-temper[n0])/dist;
                }
              else   // n1 != -1
                {
                  grad_T[face] = (temper[n1]-T_imp)/dist;
                }
            }
        }
    }  // fin des conditions limites
 
  // On calcul ensuite uteta gradT sur chaque element.
  for (int elem=0; elem<nb_elem; elem++)
    {
      for (int i=0; i<nb_faces_elem; i++)
        numfa[i] = les_elem_faces(elem,i);
 
      uteta_T[elem] = (( 0.5*(u_teta[numfa[0]]*porosite_face(numfa[0]) + u_teta[numfa[dimension]]*porosite_face(numfa[dimension]))) * (0.5*(grad_T[numfa[0]]*porosite_face(numfa[0]) + grad_T[numfa[dimension]]*porosite_face(numfa[dimension]))))
                      + (( 0.5*(u_teta[numfa[1]]*porosite_face(numfa[1]) + u_teta[numfa[dimension+1]]*porosite_face(numfa[dimension+1])))*(0.5*(grad_T[numfa[1]]*porosite_face(numfa[1]) + grad_T[numfa[dimension+1]]*porosite_face(numfa[dimension+1]))));
 
      if (dimension ==3)
        uteta_T[elem] += ((0.5*(u_teta[numfa[2]]*porosite_face(numfa[2]) + u_teta[numfa[5]]*porosite_face(numfa[5])))
                          *(0.5*(grad_T[numfa[2]]*porosite_face(numfa[2])
                                 + grad_T[numfa[5]]*porosite_face(numfa[5]))));
    }
  return uteta_T;
}
 
 
/************************************************/
//Fonctions qui calculent le terme g*beta*teta^2
/************************************************/
DoubleTab& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::calculer_gteta2(const Domaine_VDF& domaine_VDF, DoubleTab& gteta2 ,const DoubleTab& fluctu_temp, double beta,const DoubleVect& gravite) const
{
  //
  // gteta2 est discretise au centre des elements
  //
 
  int nb_elem = domaine_VDF.nb_elem();
  //int nb_faces= domaine_VDF.nb_faces();
  //DoubleTrav u_teta(nb_faces);
  //  const DoubleVect& porosite_face = domaine_VDF.porosite_face();
  gteta2 = 0;
 
  //                ------->  -------->
  // Calcul de beta.gravite . tetacarre
 
  //const Domaine& le_dom=domaine_VDF.domaine();
  //int nb_faces_elem = le_dom.nb_faces_elem();
 
  //IntTrav numfa(nb_faces_elem);
  //DoubleVect coef(dimension);
 
  for (int elem=0; elem<nb_elem; elem++)
    for (int dim=0; dim<dimension; dim++)
      gteta2(elem,dim) = beta*gravite(dim)*fluctu_temp(elem,0) ;
  return gteta2;
}
 
DoubleTab& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::calculer_gteta2(const Domaine_VDF& domaine_VDF,DoubleTab& gteta2 ,const DoubleTab& fluctu_temp,const DoubleTab& beta,const DoubleVect& gravite) const
{
  //
  // gteta2 est discretise au centre des elements
  //
 
  int nb_elem = domaine_VDF.nb_elem();
  //int nb_faces= domaine_VDF.nb_faces();
  //DoubleTrav u_teta(nb_faces);
  //  const DoubleVect& porosite_face = domaine_VDF.porosite_face();
  gteta2 = 0;
 
  //                ------->  -------->
  // Calcul de beta.gravite . tetacarre
 
  //const Domaine& le_dom=domaine_VDF.domaine();
  //int nb_faces_elem = le_dom.nb_faces_elem();
 
  //IntTrav numfa(nb_faces_elem);
  //DoubleVect coef(dimension);
  //  const IntTab& les_elem_faces = domaine_VDF.elem_faces();
 
  for (int elem=0; elem<nb_elem; elem++)
    for (int dim=0; dim<dimension; dim++)
      gteta2(elem,dim) = beta(elem)*gravite(dim)*fluctu_temp(elem,0) ;
  return gteta2;
}
 
 
DoubleTab& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::calculer_u_teta_W(const Domaine_VDF& domaine_VDF,
                                                                                  const Domaine_Cl_VDF& zcl_VDF,
                                                                                  const DoubleTab& temper,const DoubleTab& fluctu_temp,                                                                    const DoubleTab& keps,
                                                                                  const DoubleTab& alpha_turb,
                                                                                  DoubleTab& u_teta) const
{
  //                                      ---->
  // On note u_teta le vecteur alpha_turb.gradT
  //
  // Sur chaque face on calcule la composante de u_teta normale a la face
 
  int nb_faces= domaine_VDF.nb_faces();
  int n0,n1,n_bord;
  double alpha,dist;
  int face;
  int nb_elem = domaine_VDF.nb_elem();
  const IntTab& face_voisins = domaine_VDF.face_voisins();
  DoubleTab gteta2(nb_elem,dimension);
  const IntVect& orientation = domaine_VDF.orientation();
  u_teta = 0;
 
  // Traitement des faces internes
 
 
  int premiere_face_int=domaine_VDF.premiere_face_int();
  nb_faces=domaine_VDF.nb_faces();
 
  if (Objet_U::axi)
 
    for (face=premiere_face_int; face<nb_faces; face++)
      {
        n0 = face_voisins(face,0);
        n1 = face_voisins(face,1);
        dist = domaine_VDF.dist_norm_axi(face);
        alpha = 0.5*(alpha_turb(n0)+alpha_turb(n1));
        u_teta[face] = alpha*(temper[n1] - temper[n0])/dist;
      }
  else
 
    for (face=premiere_face_int; face<nb_faces; face++)
      {
        n0 = face_voisins(face,0);
        n1 = face_voisins(face,1);
        dist = domaine_VDF.dist_norm(face);
        alpha = 0.5*(alpha_turb(n0)+alpha_turb(n1));
        u_teta[face] = alpha*(temper[n1] - temper[n0])/dist;
      }
 
  // Traitement des conditions limites de type Entree_fluide_K_Eps_impose :
 
  for (n_bord=0; n_bord<domaine_VDF.nb_front_Cl(); n_bord++)
    {
 
      const Cond_lim& la_cl = zcl_VDF.les_conditions_limites(n_bord);
 
      if (sub_type(Entree_fluide_temperature_imposee,la_cl.valeur()) )
        {
          const Entree_fluide_temperature_imposee& la_cl_diri=ref_cast(Entree_fluide_temperature_imposee,la_cl.valeur());
          const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
          int ndeb = le_bord.num_premiere_face();
          int nfin = ndeb + le_bord.nb_faces();
          for (face=ndeb; face<nfin; face++)
            {
              double T_imp = la_cl_diri.val_imp(face-ndeb);
              n0 = face_voisins(face,0);
              n1 = face_voisins(face,1);
              if (Objet_U::axi)
                dist = 2*domaine_VDF.dist_norm_bord_axi(face);
              else
                dist = 2*domaine_VDF.dist_norm_bord(face);
              if (n0 != -1)
                {
                  alpha = alpha_turb(n0);
                  u_teta[face] = alpha*(T_imp-temper[n0])/dist;
                }
              else   // n1 != -1
                {
                  alpha = alpha_turb(n1);
                  u_teta[face] = alpha*(temper[n1]-T_imp)/dist;
                }
            }
        }
    }
 
  const DoubleTab& g = gravite_->valeurs();
  const Champ_Don_base& ch_beta = beta_t.valeur();
  const DoubleTab& tab_beta = ch_beta.valeurs();
 
  //on calcule gteta2 pour corriger u_teta confermement au modele de Wrobel
  if (sub_type(Champ_Uniforme,ch_beta))
    calculer_gteta2(domaine_VDF,gteta2 ,fluctu_temp,tab_beta(0,0),g);
  else
    calculer_gteta2(domaine_VDF, gteta2 ,fluctu_temp,tab_beta,g);
 
 
  //faire ICI u_tet=utet-Cb*tau*g*Beta*theta2
  int ori,num_face,elem1,elem2;
  for (n_bord=0; n_bord<domaine_VDF.nb_front_Cl(); n_bord++)
    {
      const Cond_lim& la_cl = zcl_VDF.les_conditions_limites(n_bord);
      const Front_VF& le_bord = ref_cast(Front_VF,la_cl->frontiere_dis());
      int ndeb = le_bord.num_premiere_face();
      int nfin = ndeb + le_bord.nb_faces();
      for (num_face=ndeb; num_face<nfin; num_face++)
        {
          ori = orientation(num_face);
          elem1 = face_voisins(num_face,0);
          if (elem1 != -1)
            {
              if ( (keps(elem1,1)>1.e-10) && (fluctu_temp(elem1,1)>1.e-10) &&(keps(elem1,0)>1.e-10) && (fluctu_temp(elem1,0)>1.e-10) )
                {
                  double tau = sqrt ( keps(elem1,0)/keps(elem1,1) *         fluctu_temp(elem1,0)/fluctu_temp(elem1,1)/2 );
                  u_teta(num_face)=u_teta(num_face)-0.7*tau*gteta2(elem1,ori);
                }
            }
          else
            {
              elem2 = face_voisins(num_face,1);
              if ( (keps(elem2,1)>1.e-10) && (fluctu_temp(elem2,1)>1.e-10) &&(keps(elem2,0)>1.e-10) && (fluctu_temp(elem2,0)>1.e-10))
                {
                  double tau = sqrt ( keps(elem2,0)/keps(elem2,1) *         fluctu_temp(elem2,0)/fluctu_temp(elem2,1)/2 );
                  u_teta(num_face)=u_teta(num_face)-0.7*tau*gteta2(elem2,ori);
                }
            }
        }
    }
 
  // traitement des faces internes
  for (num_face=domaine_VDF.premiere_face_int(); num_face<nb_faces; num_face++)
    {
      ori = orientation(num_face);
      elem1 = face_voisins(num_face,0);
      elem2 = face_voisins(num_face,1);
      double gtet = 0.5 *( gteta2(elem1,ori) + gteta2(elem2,ori) );
      if ( (keps(elem1,1)>1.e-10) && (fluctu_temp(elem1,1)>1.e-10) && (keps(elem2,1)>1.e-10) && (fluctu_temp(elem2,1)>1.e-10))
        {
          double tau =0.5* ( sqrt ( keps(elem1,0)/keps(elem1,1) * fluctu_temp(elem1,0)/fluctu_temp(elem1,1)/2)  + sqrt(keps(elem2,0)/keps(elem2,1) * fluctu_temp(elem2,0)/fluctu_temp(elem2,1)/2) );
          u_teta(num_face)=u_teta(num_face)-0.7*tau*gtet;
        }
    }
 
 
  return u_teta;
}
 
DoubleTab& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::calculer_terme_destruction_K_W(const Domaine_VDF& domaine_VDF,
                                                                                               const Domaine_Cl_VDF& zcl_VDF,
                                                                                               DoubleTab& G,const DoubleTab& temper,
                                                                                               const DoubleTab& fluctuTemp,
                                                                                               const DoubleTab& keps,
                                                                                               const DoubleTab& alpha_turb,
                                                                                               double beta,const DoubleVect& gravite) const
{
  //
  // G est discretise comme K et Eps i.e au centre des elements
  //
  //                                       --> ----->
  // G(elem) = beta alpha_t(elem) G . gradT(elem)
  //
 
  int nb_elem = domaine_VDF.nb_elem();
  int nb_faces= domaine_VDF.nb_faces();
  DoubleTrav u_teta(nb_faces);
  const DoubleVect& porosite_face = equation().milieu().porosite_face();
 
  //                                      ---->
  // On note u_teta le vecteur alpha_turb.gradT
  //
  // Appel a la fonction qui calcule sur chaque face la composante
  // de u_teta normale a la face
 
  calculer_u_teta_W(domaine_VDF,zcl_VDF,temper,fluctuTemp,keps,alpha_turb,u_teta);
 
  //                                          ------> ----->
  // On calcule ensuite une valeur moyenne de gravite.u_teta sur chaque
  // element.
 
  G = 0;
 
  //                ------->  ------>
  // Calcul de beta.gravite . u_teta
 
  const Domaine& le_dom=domaine_VDF.domaine();
  int nb_faces_elem = le_dom.nb_faces_elem();
 
  IntTrav numfa(nb_faces_elem);
  DoubleVect coef(Objet_U::dimension);
  const IntTab& les_elem_faces = domaine_VDF.elem_faces();
 
  for (int elem=0; elem<nb_elem; elem++)
    {
      for (int i=0; i<nb_faces_elem; i++)
        numfa[i] = les_elem_faces(elem,i);
 
      coef(0) = 0.5*(u_teta(numfa[0])*porosite_face(numfa[0])
                     + u_teta(numfa[dimension])*porosite_face(numfa[dimension]));
      coef(1) = 0.5*(u_teta(numfa[1])*porosite_face(numfa[1])
                     + u_teta(numfa[dimension+1])*porosite_face(numfa[dimension+1]));
 
      if (dimension ==2)
        G[elem] = beta*(gravite(0)*coef(0) + gravite(1)*coef(1));
 
      else if (dimension == 3)
        {
          coef(2) = 0.5*(u_teta(numfa[2])*porosite_face(numfa[2])
                         + u_teta(numfa[5])*porosite_face(numfa[5]));
          G[elem] = beta*(gravite(0)*coef(0) + gravite(1)*coef(1) + gravite(2)*coef(2));
        }
 
    }
 
  return G;
}
 
DoubleTab& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::calculer_terme_destruction_K_W(const Domaine_VDF& domaine_VDF,
                                                                                               const Domaine_Cl_VDF& zcl_VDF,
                                                                                               DoubleTab& G,const DoubleTab& temper,
                                                                                               const DoubleTab& fluctuTemp,
                                                                                               const DoubleTab& keps,
                                                                                               const DoubleTab& alpha_turb,
                                                                                               const DoubleTab& beta,const DoubleVect& gravite) const
{
  //
  // G est discretise comme K et Eps i.e au centre des elements
  //
  //                                       --> ----->
  // G(elem) = beta(elem) alpha_t(elem) G . gradT(elem)
  //
 
  int nb_elem = domaine_VDF.nb_elem();
  int nb_faces= domaine_VDF.nb_faces();
  DoubleTrav u_teta(nb_faces);
  const DoubleVect& porosite_face = equation().milieu().porosite_face();
 
  //                                      ---->
  // On note u_teta le vecteur alpha_turb.gradT
  //
  // Appel a la fonction qui calcule sur chaque face la composante
  // de u_teta normale a la face
 
  calculer_u_teta_W(domaine_VDF,zcl_VDF,temper,fluctuTemp,keps,alpha_turb,u_teta);
 
  //                                          ------> ----->
  // On calcule ensuite une valeur moyenne de gravite.u_teta sur chaque
  // element.
 
  G = 0;
 
  //                ------->  ------>
  // Calcul de beta.gravite . u_teta
 
  const Domaine& le_dom=domaine_VDF.domaine();
  int nb_faces_elem = le_dom.nb_faces_elem();
  IntTrav numfa(nb_faces_elem);
  const IntTab& les_elem_faces = domaine_VDF.elem_faces();
  DoubleVect coef(dimension);
 
  for (int elem=0; elem<nb_elem; elem++)
    {
      for (int i=0; i<nb_faces_elem; i++)
        numfa[i] = les_elem_faces(elem,i);
 
      coef(0) = 0.5*(u_teta(numfa[0])*porosite_face(numfa[0])
                     + u_teta(numfa[dimension])*porosite_face(numfa[dimension]));
      coef(1) = 0.5*(u_teta(numfa[1])*porosite_face(numfa[1])
                     + u_teta(numfa[dimension+1])*porosite_face(numfa[dimension+1]));
 
      if (dimension ==2)
        G[elem] = beta(elem)*(gravite(0)*coef(0) + gravite(1)*coef(1));
 
      else if (dimension == 3)
        {
          coef(2) = 0.5*(u_teta(numfa[2])*porosite_face(numfa[2])
                         + u_teta(numfa[5])*porosite_face(numfa[5]));
          G[elem] = beta(elem)*(gravite(0)*coef(0) + gravite(1)*coef(1) + gravite(2)*coef(2));
        }
 
    }
 
  return G;
}
 
 
DoubleTab& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::ajouter(DoubleTab& resu) const
{
  const Domaine_Cl_dis_base& zcl = eq_hydraulique->domaine_Cl_dis();
  const Domaine_VDF& domaine_VDF = ref_cast(Domaine_VDF,eq_hydraulique->domaine_dis());
  const Domaine_Cl_VDF& domaine_Cl_VDF = ref_cast(Domaine_Cl_VDF,zcl);
  const RefObjU& modele_turbulence_hydr = eq_hydraulique->get_modele(TURBULENCE);
  const Modele_turbulence_hyd_base& le_modele = ref_cast(Modele_turbulence_hyd_base,modele_turbulence_hydr.valeur());
  const Modele_turbulence_hyd_K_Eps_Bas_Reynolds& modele_bas_Re = ref_cast(Modele_turbulence_hyd_K_Eps_Bas_Reynolds,le_modele);
  const Transport_K_Eps_base& mon_eq_transport_K_Eps_Bas_Re = modele_bas_Re.get_eq_transport();
  const Domaine_Cl_VDF& zcl_VDF_th = ref_cast(Domaine_Cl_VDF,eq_thermique->domaine_Cl_dis());
  const DoubleTab& K_eps_Bas_Re = mon_eq_transport_K_Eps_Bas_Re.inconnue().valeurs();
  const DoubleTab& scalaire = eq_thermique->inconnue().valeurs();
  const DoubleTab& vit = eq_hydraulique->inconnue().valeurs();
  const DoubleTab& visco_turb = le_modele.viscosite_turbulente().valeurs();
  const DoubleTab& Fluctu_Temperature = mon_eq_transport_Fluctu_Temp->inconnue().valeurs();
  const DoubleVect& volumes = domaine_VDF.volumes();
  const DoubleVect& porosite_vol = equation().milieu().porosite_elem();
  const Modele_turbulence_scal_base& le_modele_scalaire =
    ref_cast(Modele_turbulence_scal_base,eq_thermique->get_modele(TURBULENCE).valeur());
  const DoubleTab& alpha_turb = le_modele_scalaire.diffusivite_turbulente().valeurs();
  const DoubleTab& g = gravite_->valeurs();
  const Champ_Don_base& ch_beta = beta_t.valeur();
  int nb_elem = domaine_VDF.nb_elem();
  int nb_elem_tot = domaine_VDF.nb_elem_tot();
  int nb_face = domaine_VDF.nb_faces();
  DoubleTrav uteta_T(nb_elem_tot);
  DoubleTrav P(nb_elem_tot);
  DoubleTrav G(nb_elem_tot);
  DoubleTrav utet(nb_face);
 
  calculer_u_teta(domaine_VDF,domaine_Cl_VDF,scalaire,alpha_turb,utet);
 
  // calculer_u_teta_W(domaine_VDF,domaine_Cl_VDF,scalaire,Fluctu_Temperature,K_eps_Bas_Re,alpha_turb,utet);
 
  const DoubleTab& tab_beta = ch_beta.valeurs();
 
 
  calculer_Prod_uteta_T(domaine_VDF,domaine_Cl_VDF,scalaire,utet,uteta_T);
 
  if (axi)
    {
      Champ_Face_VDF& vitesse = ref_cast_non_const(Champ_Face_VDF,eq_hydraulique->inconnue());
      calculer_terme_production_K_Axi(domaine_VDF,vitesse,P,K_eps_Bas_Re,visco_turb);
    }
  else
    {
      Champ_Face_VDF& vitesse = ref_cast_non_const(Champ_Face_VDF,eq_hydraulique->inconnue());
      calculer_terme_production_K(domaine_VDF,domaine_Cl_VDF,P,K_eps_Bas_Re,vit,vitesse,visco_turb);
    }
 
  // C'est l'objet de type domaine_Cl_dis de l'equation thermique
  // qui est utilise dans le calcul de G
 
 
  if (sub_type(Champ_Uniforme,ch_beta))
    calculer_terme_destruction_K(domaine_VDF,zcl_VDF_th,G,scalaire,alpha_turb,tab_beta(0,0),g);
  else
    calculer_terme_destruction_K(domaine_VDF,zcl_VDF_th,G,scalaire,alpha_turb,tab_beta,g);
 
  /*
    if (sub_type(Champ_Uniforme,ch_beta))
    calculer_terme_destruction_K_W(domaine_VDF,zcl_VDF_th,G,scalaire,Fluctu_Temperature,K_eps_Bas_Re,alpha_turb,tab_beta(0,0),g);
    else
    calculer_terme_destruction_K_W(domaine_VDF,zcl_VDF_th,G,scalaire,Fluctu_Temperature,K_eps_Bas_Re,alpha_turb,tab_beta,g);
  */
 
  for (int elem=0; elem<nb_elem; elem++)
    {
 
      resu(elem,0) += -2*(uteta_T(elem)+Fluctu_Temperature(elem,1))*volumes(elem)*porosite_vol(elem);
 
      double A=0;
      if (K_eps_Bas_Re(elem,0)>1.e-10)
        A=-Ca*Fluctu_Temperature(elem,1)*K_eps_Bas_Re(elem,1)/K_eps_Bas_Re(elem,0);
      double B=0;
      if (Fluctu_Temperature(elem,0)>1.e-10)
        B=-Cb*(Fluctu_Temperature(elem,1)*Fluctu_Temperature(elem,1))/Fluctu_Temperature(elem,0);
      double C=0;
      if (Fluctu_Temperature(elem,0)>1.e-10)
        C=-Cc*(Fluctu_Temperature(elem,1)/Fluctu_Temperature(elem,0))*uteta_T(elem);
      double D=0;
      if ( K_eps_Bas_Re(elem,0)>1.e-10 )
        D=+Cd*(P(elem)+G(elem))*Fluctu_Temperature(elem,1)/K_eps_Bas_Re(elem,0);
      //if (elem==45) {
      //   Cerr << "Fluctuations thermiques:" << finl;
      //   Cerr << "P=" << P(elem) << " G=" << G(elem) << " ut=" << uteta_T(elem) << finl;
      //   Cerr << "A=" << A << " B=" << B << " C=" << C << " D=" << D << finl;
      // }
      resu(elem,1) += (A+B+C+D)*volumes(elem)*porosite_vol(elem);
    }
  // Cerr << "FIN DE AJOUTER SOURCES FLUCTU TEMP resu = " << resu << finl;
  return resu;
}
 
DoubleTab& Source_Transport_Fluctuation_Temperature_W_VDF_Elem::calculer(DoubleTab& resu) const
{
  resu = 0;
  return ajouter(resu);
}