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exam2_review_problems

# exam2_review_problems - ES330 Review Problems Exam 2 3 The...

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ES330 Review Problems Exam 2 From your book 7-44 (19.9 rpm) 7-52 7-63 6-23 ((a) 6.87 kPa (b) -218 N) 6-29 (-1135 lbf) 9-46 (0.00234 m 3 / s, 10.0 m/s) In addition 1. (answer: P=1.82 kPa) 2. For the following 2D flow fields: 1. u =4 xy +3 v = 2 y 2 + x 2. u =4 xy +3 v = 2 y 2 + xy Determine whether mass is conserved. If mass is conserved, find a streamfunction if mass is not conserved, show that it is impossible to find a streamfunction (Show that the two equations u y = ψ and v x - = ψ give inconsistent answers)

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Unformatted text preview: ES330 Review Problems Exam 2 3. The following describes the flow field above a flat plate located at y =0 that has a length 0< x < l u = a y d x l v = ay 2 2 dl where d has units of length and a has units of velocity. For a fluid with density ρ and viscosity μ : • Find an expression for the viscous stress on the surface of the plate (both components of vector). • Calculate the viscous force on the plate (both components)...
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