Skin Friction Drag Calculator

Posted by Dinesh on

Use this aerodynamics calculator to calculate the total skin friction drag for your aerodynamics problems.

Total Skin Friction Drag Calculation

Dynamic pressure (q) : [N/m2]
Wing surface (S) : [m2]
Air density (?): [kg/m3]
Air flow velocity (V) : [m/s]
Lift (L):
Total skin friction drag (Df) : [N]

Formula:

Df = ( 1.328 × q? × S ) / ?((? × V? × L) / )

where,
q - Dynamic pressure (N/m2)
S - Wing surface (m2)
? - Air density (kg/m3)
V - Air flow velocity (m/s)
L - Lift (N)
- Absolute viscosity coefficient (For normal air (T = 288K): 1.789410-5kg/(ms))
Df - Total skin friction drag