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Is vortex sheet can go beyond the critical time?(a) True(b) FalseI 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

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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