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Is circular filament is of constant thickness?

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+2 votes
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in Aerodynamics by (773k points)
Is circular filament is of constant thickness?

(a) True

(b) False

The question was asked in final exam.

The origin of the question is The Vortex Filament, Biot-Savart Law, Helmholtz Theorem in portion Flow over Airfoils over Finite Wing of Aerodynamics

1 Answer

+1 vote
by (720k points)
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Best answer
Right choice is (a) True

The best explanation: The closed filaments, a circular filament of constant thickness and vorticity is in self equilibrium, this is easily verified using z=e, consider straight filaments placed on the z-axis with constant vorticity along the curve.

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