Problem 2.43 - Problem 2.43 [Difficulty: 2] Given: Velocity...

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Problem 2.43 [Difficulty: 2] Given: Velocity profile Find: Plot of velocity profile; shear stress on surface Solution: The velocity profile is u ρ g μ hy y 2 2 sin θ () = so the maximum velocity is at y = h u max ρ g μ h 2 2 sin θ = Hence we can plot u u max 2 y h 1 2 y h 2 = 0 0.25 0.5 0.75 1 0.25 0.5 0.75 1 u/umax y/h This graph can be plotted in Excel The given data is h 0.1 in = μ 2.15 10 3 × lbf s ft 2 = θ 45 deg = Basic equation τ yx μ du dy = τ yx μ du dy = μ d dy ρ g μ y 2 2 sin θ
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This note was uploaded on 10/19/2011 for the course EGN 3353C taught by Professor Lear during the Fall '07 term at University of Florida.

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