Engineering Board Exam Reviewer · Fluid Mechanics · medium
Using the Blasius equation (f = 0.316/Re0.25), what is the friction factor for smooth-pipe flow at Re = 50,000?
- 0.0013
- 0.0014
- 0.0672
- 0.0211
Answer
D. 0.0211
Solution
f = 0.316/(50,000)0.25 = 0.316/14.953 = 0.0211.
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