To determine Equivalent length of copper pipe for wholly turbulent flow Explanation Write the expression for the equivalent length. l eq = K L D f (I) Here, loss coefficient is K L , diameter of the pipe is D , and friction factor is f . Conclusion: Refer Table 8.1 “Equivalent Roughness for New Pipes”, Equivalent Roughness for Drawn tubing is 0.000005 ft. Calculate the relative roughness of the pipe. ε D = 0.000005 0.75 in . ε D = 0.0005 0.75 in . × 1 ft 12 in . = 8 × 10 − 5 Refer figure 8.20 “Friction factor as a function of Reynolds number and relative roughness for round pipes—the Moody chart” The Friction factor for wholly turbulent flow and relative roughness of 8 × 10 − 5 is f = 0

Munson, Young and Okiishi's Fundamentals of Fluid Mechanics, Binder Ready Version

8th Edition

ISBN: 9781119080701

Author: Philip M. Gerhart, Andrew L. Gerhart, John I. Hochstein

Publisher: WILEY

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Chapter 8.4, Problem 51P

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Equivalent length of copper pipe for wholly turbulent flow

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Chapter 8.4, Problem 50P

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Munson, Young and Okiishi's Fundamentals of Fluid Mechanics, Binder Ready Version

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