(Answered) 1 water at 20-c flows in a 10-cm-diameter smooth horizontal

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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,

(d) the viscous wall layer thickness.

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