Paroi_log_QDM.cpp

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#include <Paroi_log_QDM.h>
#include <Param.h>
 
// XD Paroi_log_QDM objet_u Paroi_log_QDM BRACE Must not and cannot be instantiated. Base class for the wall function.
 
 
void Paroi_log_QDM::set_param(Param& param) const
{
  param.ajouter("Kappa", &Kappa_); // XD_ADD_P double
  // XD_CONT Von Karman constant (default = 0.415)
  param.ajouter("Erugu", &Erugu); // XD_ADD_P double
  // XD_CONT Wall rugosity (default = 9.11)
  param.ajouter("A_plus", &A_plus); // XD_ADD_P double
  // XD_CONT Coefficient in the wall function (default = 26)
}
 
void Paroi_log_QDM::init_lois_paroi_hydraulique_()
{
 
  DoubleTab les_valeurs(40, 1);
  DoubleVect les_params(40);
 
  for (int i = 0; i < 40; i++)
    les_params[i] = i + 1;
 
  double val = 0;
  for (int i = 0; i < 40; i++)
    {
      val += integrale(les_params[i] - 1, les_params[i], Kappa_, A_plus, &Fdypar);
      les_valeurs(i, 0) = val*les_params[i];
    }
 
  table_hyd.remplir(les_params, les_valeurs);
}
 
double Paroi_log_QDM::calcul_lm_plus(double d_plus)
{
  return Kappa_*d_plus*(1 - exp(-d_plus/A_plus));
}
 
double Fdypar_direct(double lm_plus)
{
  return 2./(1 + sqrt(1.0 + 4*lm_plus*lm_plus));
}
 
double Fdypar(double d_plus, double kappa, double a_plus)
{
  const double lm_plus = kappa*d_plus*(1-exp(-d_plus/a_plus));
  return 2./(1+sqrt(1.0+4*lm_plus*lm_plus));
}
 
double integrale(double a, double b, double param1, double param2,
                 double (*pf) (double, double, double))
{
  return 0.5*(pf(a, param1, param2) + pf(b, param1, param2))*(b - a);
}