The ratio of average fluid velocity to the maximum velocity in case of laminar flow of a Newtonian fluid in a circular pipe is_____________________?
Correct answer: A. 0.5
- A. 0.5
- B. 1
- C. 2
- D. 0.66
Explanation
Laminar flow in a circular pipe has a parabolic profile, and integration of that profile gives an average velocity equal to half the centreline maximum velocity. Therefore, average velocity divided by maximum velocity is 0.5.
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