Question

Which of these assumptions is not made while formulating the linearized supersonic flow?

(a) Thin sharp edged airfoil

(b) Large camber

(c) Two – dimensional flow

(d) Small angle of attack

The question was posed to me at a job interview.

I need to ask this question from Linearized Supersonic Flow in chapter Linearized and Conical Flows of Aerodynamics

Answer 1

Right choice is (b) Large camber

The explanation: Ackeret developed the linearized supersonic theory in which there were simple assumptions made. The airfoil was assumed to be sharp edged, kept at very small angle of attack having small camber in a two – dimensional supersonic flow.