Fluid Mechanics seventh edition by Frank M. White · Problem P6.20
Viscous Flow in Ducts — Frank M. White
Physics — Fluid Mechanics · laminar-pipe-flow
Problem
The oil tanks in Tinyland are only 160 cm high, and they discharge to the Tinyland oil truck through a smooth tube 4 mm in diameter and 55 cm long. The tube exit is open to the atmosphere and 145 cm below the tank surface. The fluid is medium fuel oil, ρ=850 kg/m3 and μ=0.11 kg/(m⋅s). Estimate the oil flow rate in cm3/h.