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The shape of Rankine oval of equal axes can be found out by substituting ______________(a) Ψ=0(b) Ψ=1(c) U=0(d) U=1This question was posed to me in unit test.Asked question is from Nonlifting Flow over Cylinder topic in portion Inviscid & Incompressible Flow of Aerodynamics

Answer»

Correct answer is (a) Ψ=0

Easiest explanation: The shape of the Rankine oval of equal axes can be given by substituting the stream function as ZERO in the equation Ψ = U*y + ((-u/2*pi*r)*sin θ. This GIVES US two DIFFERENT solutions for which the shape of oval varies.



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