Question

Please solve part b. I already sloved part A.

Tube of length L, internal diameterD, and internal HeightH The figure above shows the in-class demo of liquid water at room temperature draining from one bucket into another. A baseline experiment is conducted with H 2 m, L-3 m, D 0.006 m, andE 0 ("smooth") at time 0 s. Assume reentrant entrance and exit for the tube, and steady, fully developed, incompressible flow (and ignore the instantaneous velocity of the free surface as the buckets fill/drain). a) Estimate the instantaneous volume flow rate at time 0 seconds using the following methods for estimating the Darcy Friction Factor, f: i. Moody chart lookup i. Colebrook formula ii. Haaland formula b) Using whichever metbod you prefer from part (a) for finding the Darcy Friction Factor, f, solve for the instantaneous volume flow rate at time 0 seconds for the following cases: i. f the length of tubing L is doubled to 6 m and all other factors are identical to the ii. iii. iv. baseline case If the height difference between the two free surfaces, H, is doubled to 4 m and all other factors are identical to the baseline case If the tubing internal diameter, D, is doubled to 12 mm and all other factors are identical to the baseline case If the tubing internal diameter, D, is doubled to 12 mm and 5 elbow fittings are added to the tubing length, each with a loss coefficient, K-1.8, and all other factors are identical to the baseline case If the tubing internal diameter, D, is reduced to 1.5 mm and all other factors are identical to the baseline case f the tubing internal roughness dimension, E, is estimated to be 90 misren instead of 0.0 m ("smooth) and all other factors are identical to the baseline case If the fluid in the bucket is ethanol instead of water and all other factors are identical to the baseline case v. vi. vii.

Answer 1

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