Perte_Charge_Reguliere.h

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#ifndef Perte_Charge_Reguliere_included
#define Perte_Charge_Reguliere_included
 
#include <Perte_Charge.h>
#include <TRUSTVect.h>
#include <math.h>
 
/*! @brief Classe Perte_Charge_Reguliere Cette classe derivee de Perte_Charge est utiliseelorsque l'on veut
 *
 *     modeliser un domaine de l'ecoulement dans lequel des obstacles sont
 *     immerges (faisceau de tubes par exemple)
 *
 * @sa Perte_Charge Perte_Charge_Singuliere
 */
class Perte_Charge_Reguliere : public Perte_Charge
{
 
public :
  Perte_Charge_Reguliere();
  inline double correction_direction(DoubleVect& , int) const ;
  inline double calculer_Cf_blasius(double ) const;
  Entree& lire_donnees(Entree& );
  inline double D() const;
  inline double d() const;
  inline double a() const;
  inline double b() const;
  inline double CF() const;
 
protected :
 
  double D_;
  double d_;
  double a_;
  double b_;
  double Cf_;
 
  int couronne_tube ;
  int Cf_utilisateur ;
  double xo,yo,zo;
  int dir[3] ;
  double h0, h ;
 
};
 
 
/*! @brief
 *
 * @return (double)
 */
inline double Perte_Charge_Reguliere::D() const
{
  return D_;
}
 
 
/*! @brief
 *
 * @return (double)
 */
inline double Perte_Charge_Reguliere::d() const
{
  return d_;
}
 
 
/*! @brief
 *
 * @return (double)
 */
inline double Perte_Charge_Reguliere::a() const
{
  return a_;
}
 
 
/*! @brief
 *
 * @return (double)
 */
inline double Perte_Charge_Reguliere::b() const
{
  return b_;
}
 
inline double Perte_Charge_Reguliere::CF() const
{
  return Cf_;
}
 
/*! @brief
 *
 * @return (double)
 */
inline double Perte_Charge_Reguliere::calculer_Cf_blasius(double Re) const
{
  double Cf = 0.;
  if (Re > 1.e-12)
    Cf= a_*pow(Re,-b_);
  return Cf;
}
 
inline double Perte_Charge_Reguliere::correction_direction(DoubleVect& xp, int k) const
{
  double cor_dir = 1 ;
 
  if (couronne_tube == 1)
    {
      int dimension = xp.size() ;
 
      double x1 = (xp(0) - xo)*dir[0] ;
      double y1 = (xp(1) - yo)*dir[1] ;
      double z1 = 0. ;
      if (dimension == 3 ) z1 = (xp(2) - zo)*dir[2] ;
      double scale = sqrt(x1*x1 + y1*y1 + z1*z1);
 
      //          if (k == 0 ) cor_dir = x1/scale ;
      //          if (k == 1 ) cor_dir = y1/scale ;
      //         if (k == 2 ) cor_dir = z1/scale ;
      if (k == 0 ) cor_dir = std::fabs(x1)/scale ;
      if (k == 1 ) cor_dir = std::fabs(y1)/scale ;
      if (k == 2 ) cor_dir = std::fabs(z1)/scale ;
 
    }
 
  return cor_dir;
}
 
 
#endif