Attempt a numerical solution of Prob. 3.93 for SAE 30 oil at 20C. Let h = 20 cm, L = 15 cm and D =

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Attempt a numerical solution of Prob. 3.93 for SAE 30 oil at 20°C. Let h = 20 cm, L = 15 cm and D = 4 mm. Use the laminar shear approximation from Sec. 6.4: τ ≈ 8μV/D, where μ is the fluid viscosity. Account for the decrease in wall area wetted by the fluid. Solve for the time required to empty (a) the vertical leg and (b) the horizontal leg.

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