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How many variables is the flow field dependent on in case of flow over a cone at an angle of attack?(a) 1(b) 2(c) 3(d) 4The question was posed to me in an online interview.I would like to ask this question from Cones at Angle of Attack in chapter Three-Dimensional Flow of Aerodynamics

Answer»

Right choice is (b) 2

The explanation is: For axisymmetric flow (flow over a cone at zero ANGLE of attack), the flow FIELD is only DEPENDENT on polar angle WHEREAS when the cone is kept at some angle of attack, the flow field is a function of both polar angle θ and the azimuth angle ϕ.



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