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Question: Derive the irrotational flow formula

p = p₀ = 1ρU²(1 - 4sin²Θ)
2

giving the intensity of normal pressure p on the surface of a long circular cylinder, set at right angles to a stream of velocity U. The undisturbed static pressure in the fluid is and θ is the angular distance from the stagnation point. Describe briefly an experiment to test the accuracy of the formula and comment on the results obtained. (U of L)

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