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Circulation varies along the lifting line.(a) False(b) TrueI got this question in an interview for job.The doubt is from Prandtl’s Classical Lifting-Line Theory topic in division Flow over Airfoils over Finite Wing of Aerodynamics

Answer»

Correct option is (b) True

To explain I WOULD say: In lifting line THEORY, the lifting line along the SPAN is a superimposition of many bound vortices with DIFFERENT lengths. This gives different strengths for each of the HORSESHOE vortex i.e. the circulation varies along the lifting line.



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