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Is weak external velocity, rolling up of the vortex filament?

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in Aerodynamics by (773k points)
Is weak external velocity, rolling up of the vortex filament?

(a) True

(b) False

The question was posed to me during a job interview.

Query is from The Vortex Filament, Biot-Savart Law, Helmholtz Theorem in division Flow over Airfoils over Finite Wing of Aerodynamics

1 Answer

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Best answer
The correct option is (a) True

The explanation: The weak external velocity, rolling up of the vortex filament occurs as expected, but in the presence of strong external velocity field, the filament is extremely stretched out and flattened, preventing all rolling up activities.

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