Mechanical Engineering > GATE 2013 SET-3 > Pipe Flow
For steady, fully developed flow inside a straight pipe of diameter D, neglecting gravity effects, the pressure drop Δp over a length L and the wall shear stress τw are related by
A
τw = Δp D / 4L
B
τw = Δp D2 / 4L2
C
τw = Δp D / 2L
D
τw = 4Δp L / D

Explanation

Correct : a

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