Pocket drag coefficient

The inflow loss factor for the axial flow from the pocket to the pocket web (inflow and acceleration losses).

The following applies for the pressure loss $Δ$ p_T at the pocket edge:

$Δ p_{T} = (1 + ζ_{T}) \times ρ v^{2} / 2$

$v$	Average speed at edge of pocket
$Δ p_{T}$	Pressure loss
$ρ$	Density

The default value for the resistance coefficient is 0.74.