Vitesse_derive_Ishii.h

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#ifndef Vitesse_derive_Ishii_included
#define Vitesse_derive_Ishii_included
 
#include <Vitesse_derive_base.h>
 
/*! @brief Ishii drift velocity correlation between a gas phase and a liquid phase.
 *
 *  Drift velocity between a gas phase and a liquid phase.
 *      -> Ishii correlation of the form: v_g = C0 * (alpha_g * v_g + alpha_l * v_l) + v_g0
 *
 */
 
class Vitesse_derive_Ishii : public Vitesse_derive_base
{
  Declare_instanciable(Vitesse_derive_Ishii);
public:
  void set_param(Param& param) const override;
 
protected:
  void evaluate_C0_vg0(const input_t& input) const override;
 
  // correlation parameters (circular channel)
  int sb_ = 0;       // subcooled boiling (0 = no, 1 = yes)
  double Cinf = 1.2; // asymptotic value of C0
  double theta = 1.75;
  double zeta = 18.0;
};
 
#endif /* Vitesse_derive_Ishii_included */