ch08 - Introduction to Fluid Mechanics 7 th Edition Fox...

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Unformatted text preview: Introduction to Fluid Mechanics 7 th Edition Fox, Pritchard, & McDonald Answers to Selected Problems, Chapter 8 8.1 Q = 0.146 ft 3 /s L = 12.5 – 20 ft (turbulent) L = 69.0 ft (laminar) 8.3 Smallest turbulent first Q large = 0.0244 ft 3 /s Non are fully developed Q mid = 0.0122 ft 3 /s Smallest fully developed Q small = 0.00610 ft 3 /s Smallest fully developed 8.7 3 2 max = u V 8.9 τ yx = – 1.88 Pa Q / b = – 5.63 x 10 – 6 m 2 /s 8.11 Q = 1.25 x 10 – 5 ft 3 /s (0.0216 in 3 /s) 8.13 Q = 3.97 x 10 – 9 m 3 /s (3.97 x 10 – 6 L/s) 8.15 M = 4.32 kg 3 12 a L pD Q μ π Δ = a = 1.28 x 10 – 5 m (12.8 μ m) 8.17 rh Q V π 2 = 3 6 rh Q dr dp π μ − = ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ − = R r rh Q p p ln 6 3 atm π μ ( p = p , r < R ) 8.19 n = 1.48 (dilatant) 8.21 ∂ p / ∂ x = – 92.6 Pa/m 8.23 u interface = 15 ft/s 8.25 ∂ p / ∂ x = – 2 U μ / a 2 ∂ p / ∂ x = 2 U μ / a 2 8.27 ν = 1.00 x 10 – 4 m 2 /s 8.29 τ = ρ g sin( θ )( h – y ) Q / w = 217 mm 3 /s/mm Re = 0.163 8.31 Q / w = 0.0208 ft 3 /s/ft τ = 1.58 x 10 – 6 psi ∂ p / ∂ x = 7.58 x 10...
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This note was uploaded on 09/08/2010 for the course AME 331 taught by Professor Zohar during the Spring '08 term at Arizona.

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ch08 - Introduction to Fluid Mechanics 7 th Edition Fox...

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