Is vortex filament cannot begin or terminate in the air?(a) True(b) FalseI have been asked this question in my homework.This intriguing question originated from Prandtl’s Classical Lifting-Line Theory in section Flow over Airfoils over Finite Wing of Aerodynamics

Is vortex filament cannot begin or terminate in the air?(a) True(b) Fa

1.	Is vortex filament cannot begin or terminate in the air?(a) True(b) FalseI have been asked this question in my homework.This intriguing question originated from Prandtl’s Classical Lifting-Line Theory in section Flow over Airfoils over Finite Wing of Aerodynamics
Answer» Correct option is (a) True Explanation: The vortex filament cannot BEGIN or TERMINATE in the air, as such, any span wise change in lift can be modeled as the shedding of a vortex filament down the flow, BEHIND the wing. This shed vortex, hose strength is the derivative of the LOCAL wing.

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