1. Water at 20-C flows in a 10-cm-diameter smooth horizontal pipe at the rate of 0.004 m3=s. Estimate the maximum velocity in the pipe and the head loss over 40 m of length. Use the power-law velocity distribution.
2. SAE-30 oil at 20-C is transported in a smooth 40-cm-diameter pipe with an average velocity of 10 m=s. Using the power-law velocity profile, estimate
(a) the friction factor,
(b) the pressure drop over 100 m of pipe,
(c) the maximum velocity, and
(d) the viscous wall layer thickness.