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Downwash for an elliptic wing circulation distribution is constant.

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in Aerodynamics by (773k points)
Downwash for an elliptic wing circulation distribution is constant.

(a) True

(b) False

I got this question in semester exam.

Query is from Prandtl’s Classical Lifting-Line Theory topic in division Flow over Airfoils over Finite Wing of Aerodynamics

1 Answer

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Best answer
Correct option is (a) True

The best explanation: For an elliptic distribution of lift over the span of a wing, downwash is a constant. This can be calculated from Biot-Savart law and using substitution to reveal that downwash is a constant along the span.

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