Frottement_interfacial_Simonnet.cpp

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#include <Frottement_interfacial_Simonnet.h>
#include <Pb_Multiphase.h>
#include <Milieu_composite.h>
#include <math.h>
 
Implemente_instanciable(Frottement_interfacial_Simonnet, "Frottement_interfacial_Simonnet", Frottement_interfacial_base);
 
Sortie& Frottement_interfacial_Simonnet::printOn(Sortie& os) const
{
  return os;
}
 
Entree& Frottement_interfacial_Simonnet::readOn(Entree& is)
{
  Correlation_base::typer_lire_correlation(frottement_bulle_seule_, pb_.valeur(), "frottement_interfacial", is);
 
  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++) // search for n_l: liquid_continu phase takes priority
    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!");
 
  return is;
}
 
void Frottement_interfacial_Simonnet::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;
 
  ref_cast(Frottement_interfacial_base, frottement_bulle_seule_.valeur()).coefficient(alpha, p,        T,
                                                                                      rho,   mu,       sigma,  Dh,
                                                                                      ndv,   d_bulles, coeff);
 
 
  for (int k = 0; k < N; k++)
    if (k!=n_l)
      {
        double correction = ( alpha(n_l) < 1.e-6 ) ? alpha(n_l) * std::pow(  std::pow(1.e-6,m_)  +  std::pow(4.8*alpha(k)/1.e-6, m_)     , -2./m_) :
                            alpha(n_l) * std::pow(  std::pow(alpha(n_l),m_)  +  std::pow(4.8*alpha(k)/alpha(n_l), m_)     , -2./m_) ;
 
        coeff(k, n_l, 1) *= correction ;
        coeff(k, n_l, 0) *= correction ;
        coeff(n_l, k, 0) *= correction ;
        coeff(n_l, k, 1) *= correction ;
 
      }
}