Frottement_interfacial_Kumar_Brooks.h

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#ifndef Frottement_interfacial_Kumar_Brooks_included
#define Frottement_interfacial_Kumar_Brooks_included
#include <Frottement_interfacial_base.h>
 
/*! @brief Kumar-Brooks interfacial drag for two-group two-fluid model.
 *
 *         Reference: V. Kumar, C.S. Brooks, "Inter-group mass transfer
 *         modeling in the two-group two-fluid model with interfacial area
 *         transport equation in condensing flow", IJHMT, 2018.
 */
 
class Frottement_interfacial_Kumar_Brooks : public Frottement_interfacial_base
{
  Declare_instanciable(Frottement_interfacial_Kumar_Brooks);
public:
  void 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 override;
  void 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  override;
 
protected:
  double g_=9.81;
  double Dh_ = 1.e6;
  int n_l = -1; //liquid phase
};
 
#endif