Question

For a cone at an angle of attack, what is the shock wave a function of?

(a) Polar angle

(b) Azimuth angle

(c) Angle of attack

(d) Conical ray distance

This question was addressed to me in my homework.

I want to ask this question from Cones at Angle of Attack in section Three-Dimensional Flow of Aerodynamics

Answer 1

Right choice is (b) Azimuth angle

For explanation: Shock wave angle is the angle formed between the shock wave and the axis of the conical surface. This angle is a function of azimuth angle ϕ and varies for every different meridian plane. Streamlines that move through various points on the shock wave undergo various changes in entropy around the shock since the shock wave angle of the shock wave is different.