Mechanical Engineering > GATE 2013 SET-1 > Fluid Mechanics
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) / (4 L)
B
τw = (Δp D2) / (4L2)
C
τw = (Δp D) / (2L)
D
τw = (4ΔpL) / D

Correct : a

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Related Topics

pipe flow mechanics fully developed pipe flow steady pipe flow pressure drop pipe wall shear stress GATE mechanical engineering 2013 fluid mechanics gate pipe flow equation GATE set 1 question 7

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