In case of turbulent flow of fluid through a circular pipe, the __________________?

A. Velocity profile becomes flatter and flatter with increasing Reynolds number

B. Point of maximum instability exists at a distance of 2r/3 from the pipe wall (r = pipe radius)

C. file at the wall are more</strong>

D. Mean flow velocity is about 0.5 times the maximum velocity

E. Skin friction drag, shear stresses, random orientation of fluid particles and slope of velocity
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