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Purpose of non-lifting flow over an arbitrary body is _____________

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Purpose of non-lifting flow over an arbitrary body is _____________

(a) to find a numerical method

(b) to find a mathematical method

(c) to find a lifting body

(d) to find a drag body

This question was posed to me during an online interview.

This is a very interesting question from Nonlifting Flow over Arbitrary Bodies in chapter Inviscid & Incompressible Flow of Aerodynamics

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Right answer is (a) to find a numerical method

Explanation: The purpose of non-lifting flow over an arbitrary bodies is to find a numerical method for appropriate solution on a high speed digital computer. The technique is called the source panel. The numerical solution of potential flows by both source and vortex panel techniques has revolutionized the analyses of low speed flows.

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