Question: Velocity distribution in turbulent pipe flow water is flowing through a long, straight, level run of smooth 6.00 in. i.d. pipe, at a temperature of

Velocity distribution in turbulent pipe flow water is flowing through a long, straight, level run of smooth 6.00 in. i.d. pipe, at a temperature of 68oF. The pressure gradient length of the pipe is 1.0 psi/mi. 

(a) Determine the wall shear stress τ0 in psi (lbf/in.2) and Pa. 

(b) Assume the flow to be turbulent and determine the radial distances from the pipe wall at which vz/vzmax = 0.0, 0.1, 0.2, 0.4, 0.7, 0.85, 1.0. 

(c) Plot the complete velocity profile, vz/vzmax vs. y = R – r. 

(d) Is the assumption of turbulent flow justified? 

(e) What is the mass flow rate? 

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