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Is vortex sheet can go beyond the critical time?

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in Aerodynamics by (773k points)
Is vortex sheet can go beyond the critical time?

(a) True

(b) False

I have been asked this question in an online interview.

My question is based upon The Vortex Sheet topic in portion Incompressible Flow over Airfoils of Aerodynamics

1 Answer

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Best answer
Correct option is (b) False

For explanation I would say: The vortex sheet solution as given by the birkoff-roff equation cannot go beyond the critical time. The spontaneous loss of analyticity in a vortex sheet is a consequence of mathematical modeling since a real fluid with viscosity, however, small will never develop singularity.

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