SSC JE Civil Engineering 2018 Set 1 Solved Paper

Question : 140 of 200

Marks: +1, -0

At what distance from the boundary layer, the value of the wall shear is three times of the turbulent shear?

Solution:

Wall shear stress is 3 times of the turbulent shear, when the distance from the boundary layer is

(2 /3)R

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