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For a supersonic flow over a right – circular cone at zero angle of attack, what are the flow properties a function of?(a) Polar angle(b) Azimuth angle(c) Mach number(d) Conical ray distanceThe question was asked in a job interview.The query is from Cones at Angle of Attack topic in section Three-Dimensional Flow of Aerodynamics

Answer»

The correct option is (a) Polar angle

Easiest explanation: When a right – CIRCULAR cone is kept at a ZERO angle of attack in a supersonic flow, the flow PROPERTIES are only a function of polar angle θ. It is independent of the azimuth angle ϕ and the distance from the VERTEX along conical ray.



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