airfoilprep.Airfoil.extrapolate

Airfoil.extrapolate(cdmax, AR=None, cdmin=0.001)

apply high alpha extensions to each polar in airfoil

Parameters:

cdmax : float

maximum drag coefficient

AR : float, optional

blade aspect ratio (rotor radius / chord at 75% radius). if included it is used to estimate cdmax

cdmin: minimum drag coefficient

Returns:

airfoil : Airfoil

airfoil with +/-180 degree extensions

See also

Polar.extrapolate

extrapolate a Polar to high angles of attack