Hi guys,

I have been studying blade design using Blade Element Momentum theory and I have done axial and angular factor resolution, but I’m curious about numerical code for lift and drag coefficient in a function of angle of attack. What I did do is to extrapolate it one by one that wastes of time so I have been figuring out another possible way to predict them.

Do you know how I can form codes to predict the factors? Actually, literature I read mentions this, but it’s not quite clear about derivation.

Also, tip loss correction, F, is due to vortex loss at a tip section of rotor. Am I right that vortex (wake) loss occurs in both hub and tip section so one has to consider F in both section? please clarify my doubt

Any source I can look at please let me know

Thank you very much

Chat.