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Which of these scenarios will lead to formation of vorticity?

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in Aerodynamics by (773k points)
Which of these scenarios will lead to formation of vorticity?

(a) Flow behind curved shock wave

(b) Flow over a sharp wedge

(c) Two – dimensional nozzle flow

(d) Flow over a slender body

I got this question during a job interview.

The question is from Irrotational Flow topic in portion Velocity Potential Equation of Aerodynamics

1 Answer

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Best answer
Correct answer is (a) Flow behind curved shock wave

For explanation I would say: The flow within the boundary layer and behind curved shock wave is a rotational flow as the curl of velocity vector is not equal to zero. But, flow over a wedge, cone, in a two – dimensional nozzle flow and over a slender body is irrotational since the curl of velocity vector is zero.

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