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 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 = a = 1.28 x 10 5 m (12.8 m) 8.17 rh Q V 2 = 3 6 rh Q dr dp = = R r rh Q p p ln 6 3 atm ( 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 / a 2 p / x = 2 U / a 2 8.27 = 1.00 x 10 4 m 2 /s 8.29 = g sin( )( h y ) Q / w = 217 mm 3 /s/mm Re = 0.163 8.31 Q / w = 0.0208 ft 3 /s/ft = 1.58 x 10 6 psi p / x = 7.58 x 10...
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ch08 - Introduction to Fluid Mechanics 7 th Edition Fox,...

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