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