Computes drag coefficient using the Churchill formula for Fanning friction factor.
const Real & _roughness
Roughness of the surface.
const MaterialProperty< Real > & _D_h
Hydraulic diameter.
const MaterialPropertyName _f_D_name
Darcy wall friction coefficient.
MaterialProperty< Real > & _f_D
const MaterialProperty< Real > & _vel
Velocity (x-component)
const MaterialProperty< Real > & _mu
Dynamic viscosity.
MaterialProperty< Real > & _df_D_drhoEA
virtual void computeQpProperties()
const MaterialProperty< Real > & _rho
Density of the phase.
static InputParameters validParams()
MaterialProperty< Real > & _df_D_drhoA
MaterialProperty< Real > & _df_D_drhouA