Frottement_interfacial_Tomiyama.cpp

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#include <Frottement_interfacial_Tomiyama.h>
#include <Pb_Multiphase.h>
#include <Milieu_composite.h>
#include <math.h>
 
Implemente_instanciable(Frottement_interfacial_Tomiyama, "Frottement_interfacial_Tomiyama", Frottement_interfacial_base);
 
Sortie& Frottement_interfacial_Tomiyama::printOn(Sortie& os) const
{
  return os;
}
 
Entree& Frottement_interfacial_Tomiyama::readOn(Entree& is)
{
  Param param(que_suis_je());
  param.ajouter("beta", &beta_);
  param.ajouter("constante_gravitation", &g_);
  param.ajouter("contamination", &contamination_);
  param.lire_avec_accolades_depuis(is);
  if (! ((contamination_==0)|(contamination_==1)|(contamination_==2) )) Process::exit("Frottement_interfacial_Tomiyama : only 3 contamination levels exist : 0,1,2 !");
 
  const Pb_Multiphase *pbm = sub_type(Pb_Multiphase, pb_.valeur()) ? &ref_cast(Pb_Multiphase, pb_.valeur()) : nullptr;
 
  if (!pbm || pbm->nb_phases() == 1) Process::exit(que_suis_je() + " : not needed for single-phase flow!");
  for (int n = 0; n < pbm->nb_phases(); n++) //recherche de n_l, n_g : phase {liquide,gaz}_continu en priorite
    if (pbm->nom_phase(n).debute_par("liquide") && (n_l < 0 || pbm->nom_phase(n).finit_par("continu")))  n_l = n;
  if (n_l < 0) Process::exit(que_suis_je() + " : liquid phase not found!");
 
  for (int k = 0; k < pbm->nb_phases(); k++)
    if (k != n_l)
      if (!(ref_cast(Milieu_composite, pbm->milieu()).has_interface(n_l, k))) Process::exit("Frottement_interfacial_Tomiyama : one must define an interface and have a surface tension !");
 
  return is;
}
 
void Frottement_interfacial_Tomiyama::completer()
{
  if (!pb_->has_champ("diametre_bulles")) Process::exit("Frottement_interfacial_Tomiyama : there must be a bubble diameter field !");
}
 
 
void Frottement_interfacial_Tomiyama::coefficient(const DoubleTab& alpha, const DoubleTab& p, const DoubleTab& T,
                                                  const DoubleTab& rho, const DoubleTab& mu, const DoubleTab& sigma, double Dh,
                                                  const DoubleTab& ndv, const DoubleTab& d_bulles, DoubleTab& coeff) const
{
  int N = ndv.dimension(0);
 
  coeff = 0;
 
  for (int k = 0; k < N; k++)
    if (k!=n_l)
      {
        int ind_trav = (k>n_l) ? (n_l*(N-1)-(n_l-1)*(n_l)/2) + (k-n_l-1) : (k*(N-1)-(k-1)*(k)/2) + (n_l-k-1);
 
        double Re      = rho(n_l) * std::max(ndv(n_l,k), 1.e-6)    * d_bulles(k)/mu(n_l);
        double dndv_Re = rho(n_l) * (ndv(n_l,k)> 1.e-6 ? 1. : 0. ) * d_bulles(k)/mu(n_l);
        double Eo = g_ * std::abs(rho(n_l)-rho(k)) * d_bulles(k)*d_bulles(k)/sigma(ind_trav);
 
        double Cd = -1;
        double dndv_Cd = 0.;
        if (contamination_==0) Cd = beta_ * std::max( std::min( 16./Re*(1+0.15*std::pow(Re, 0.687)) , 48./Re )   , 8.*Eo/(3.*(Eo+4.)));
        if (contamination_==1) Cd = beta_ * std::max( std::min( 24./Re*(1+0.15*std::pow(Re, 0.687)) , 72./Re )   , 8.*Eo/(3.*(Eo+4.)));
        if (contamination_==2) Cd = beta_ * std::max(           24./Re*(1+0.15*std::pow(Re, 0.687))              , 8.*Eo/(3.*(Eo+4.)));
 
        if      ((contamination_==0) && (16./Re*(1+0.15*std::pow(Re, 0.687)) < 48./Re ) && (16./Re*(1+0.15*std::pow(Re, 0.687)) > 8.*Eo/(3.*(Eo+4.))) )
          dndv_Cd = beta_ * -16.*dndv_Re/(Re*Re)*(1+0.15*std::pow(Re, 0.687)) + beta_ * 16./Re*0.15*dndv_Re*0.687*std::pow(Re, 0.687-1.);
        else if ((contamination_==0) && (16./Re*(1+0.15*std::pow(Re, 0.687)) > 48./Re ) && (48./Re > 8.*Eo/(3.*(Eo+4.))) )
          dndv_Cd = beta_ * -48.*dndv_Re/(Re*Re);
        else if ((contamination_==1) && (24./Re*(1+0.15*std::pow(Re, 0.687)) < 72./Re ) && (24./Re*(1+0.15*std::pow(Re, 0.687)) > 8.*Eo/(3.*(Eo+4.))) )
          dndv_Cd = beta_ * -24.*dndv_Re/(Re*Re)*(1+0.15*std::pow(Re, 0.687)) + beta_ * 24./Re*0.15*dndv_Re*0.687*std::pow(Re, 0.687-1.);
        else if ((contamination_==1) && (24./Re*(1+0.15*std::pow(Re, 0.687)) > 72./Re ) && (72./Re > 8.*Eo/(3.*(Eo+4.))) )
          dndv_Cd = beta_ * -72.*dndv_Re/(Re*Re);
        else if ((contamination_==2) && (24./Re*(1+0.15*std::pow(Re, 0.687)) > 8.*Eo/(3.*(Eo+4.))) )
          dndv_Cd = beta_ * -24.*dndv_Re/(Re*Re)*(1+0.15*std::pow(Re, 0.687)) + beta_ * 24./Re*0.15*dndv_Re*0.687*std::pow(Re, 0.687-1.);
 
        if (alpha(n_l) > 1.e-6)
          {
            coeff(k, n_l, 0) = 3./4.*Cd/d_bulles(k) * alpha(k) * rho(n_l) * ndv(n_l,k);
            coeff(n_l, k, 0) = coeff(k, n_l, 0);
            coeff(k, n_l, 1) = 3./4.*Cd/d_bulles(k) * alpha(k) * rho(n_l) + 3./4.*dndv_Cd/d_bulles(k) * alpha(k) * rho(n_l) * ndv(n_l,k);
            coeff(n_l, k, 1) = coeff(k, n_l, 1);
          }
        else
          {
            coeff(k, n_l, 0) = 3./4.*Cd/d_bulles(k) * alpha(k) * rho(n_l) * ndv(n_l,k) * alpha(n_l) * 1.e6;
            coeff(n_l, k, 0) = coeff(k, n_l, 0);
            coeff(k, n_l, 1) = (3./4.*Cd/d_bulles(k) * alpha(k) * rho(n_l) + 3./4.*dndv_Cd/d_bulles(k) * alpha(k) * rho(n_l) * ndv(n_l,k) )* alpha(n_l) * 1.e6;
            coeff(n_l, k, 1) = coeff(k, n_l, 1);
          }
      }
}
 
 
void Frottement_interfacial_Tomiyama::coefficient_CD(const DoubleTab& alpha, const DoubleTab& p, const DoubleTab& T,
                                                     const DoubleTab& rho, const DoubleTab& mu, const DoubleTab& sigma, double Dh,
                                                     const DoubleTab& ndv, const DoubleTab& d_bulles, DoubleTab& coeff) const
{
  int N = ndv.dimension(0);
 
  coeff = 0;
 
  for (int k = 0; k < N; k++)
    if (k!=n_l)
      {
        int ind_trav = (k>n_l) ? (n_l*(N-1)-(n_l-1)*(n_l)/2) + (k-n_l-1) : (k*(N-1)-(k-1)*(k)/2) + (n_l-k-1);
 
        double Re = rho(n_l) * std::max(ndv(n_l,k), 1.e-6) * d_bulles(k)/mu(n_l);
        double Eo = g_ * std::abs(rho(n_l)-rho(k)) * d_bulles(k)*d_bulles(k)/sigma(ind_trav);
        double Cd = -1;
        if (contamination_==0) Cd = beta_ * std::max( std::min( 16./Re*(1+0.15*std::pow(Re, 0.687)) , 48./Re )   , 8.*Eo/(3.*(Eo+4.)));
        if (contamination_==1) Cd = beta_ * std::max( std::min( 24./Re*(1+0.15*std::pow(Re, 0.687)) , 72./Re )   , 8.*Eo/(3.*(Eo+4.)));
        if (contamination_==2) Cd = beta_ * std::max(           24./Re*(1+0.15*std::pow(Re, 0.687))              , 8.*Eo/(3.*(Eo+4.)));
 
        coeff(k, n_l) = (coeff(n_l, k) = Cd);
      }
}