InterviewSolution
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InterviewSolution
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Which of the following is the correct solution of the transformed fundamental equation of aerodynamics for a symmetrical airfoil?(a) γ(θ)=2αV∞\(\frac {sin\theta }{1+cos\theta }\)(b) γ(θ)=2αV∞\(\frac {1+cos\theta }{sin\theta }\)(c) γ(θ)=2αV∞\(\frac {1-cos\theta }{sin\theta }\)(d) γ(θ)=2αV∞\(\frac {cos\theta }{sin\theta }\)The question was posed to me during an internship interview.This is a very interesting question from The Symmetric Airfoil topic in section Incompressible Flow over Airfoils of Aerodynamics |
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Answer» RIGHT choice is (b) γ(θ)=2αV∞\(\frac {1+cos\theta }{sin\theta }\) The explanation is: The solution of the fundamental equation of THIN airfoil THEORY is obtained using the transformation of coordinates. We have α and V∞ and using the standard integrals we can find a solution for γ(x) as γ(θ)=2αV∞\(\frac {1+cos\theta }{sin\theta }\) where 0≤θ≤π for 0≤x≤C. |
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