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Question: problem thwaitesmethod is a useful empirical procedure for predicting laminar...

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Problem: Thwaitesmethod is a useful empirical procedure for predicting laminar boundary-layer prop- erties with variable freestream pressure, including separation point. With this method, the momentum thickness, 0, and skin friction, cf, are given by 2(K +0.09)0.62 Re θ 02 due v dr 2 0.450 where K Lu 0 Also, Reg is Reynolds number based on . According to this method, boundary-layer separation occurs when K -0.09. Using the potential-flow solution for (x), determine the angle, sep, at which laminar separation occurs on a circular cylinder according to Thwaites method. Solve the equation you obtain by trial and error to the nearest tenth of a degree. Note that, in the spirit of boundary-layer approximations, is distance along the cylinder surface measured from the leading stagnation point siln sep Wake Answer: p 103.2 Hint: Use the potential flow solution for flow over a cylinder to obtainu. (x) an<d measure x along the surface of the cylinder from the front stagnation point. Also, you will need to find the answer by drawing a graph to find where the expression yoiu determine for pep is zero

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