Question

Findφ, θp, θT and c, for one blade section at r/R = 0.30 for an ideal blade (e.g. Cd= 0 and a’ = 0). Assume the tip speed ratio is 7.5, the number of blades is 3, t he rotor diameter is 8 m (R = 4 m), the lift coefficient is 1.1, and the minimum drag to lift ratio is at an angle of attack of 8o. Make sure you write down which equations you used and the process by which you calculated each parameter.

Answer 1