Question

The flow properties remain constant in a conical flow over which of the following?

(a) Ray from a vertex

(b) Along the axis

(c) Along the conical base

(d) Interior of the conical surface

I have been asked this question during an interview.

This is a very interesting question from Physical Aspects of Conical Flow topic in section Linearized and Conical Flows of Aerodynamics

Answer 1

Right option is (a) Ray from a vertex

The explanation: Flow properties such as the pressure and density remain constant along the ray originating from the vertex of the cone including on the surface of the cone. Although, the flow properties vary from one ray to another.