Assume that laminar flow of 60ºF water has been maintained in a
1-in. schedule 160 (actual I.D. of 0.815-in.), horizontal,
100-ft-long commercial steel pipe at a Reynolds number of 24,000.
(Yes, laminar flow is possible at a Reynolds number that is this
high under very controlled conditions.) Compare the pressure drop
for this flow and that of turbulent flow for the same Reynolds
number.