Two water reservoirs are joined by a sharp ended flexible pipe 100 mm in diameter and...

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Mechanical Engineering

Two water reservoirs are joined by a sharp ended flexible pipe100 mm in diameter and 36 m long. The ends of the pipe differ inlevel by 4 m. The surface level of the upper reservoir is 1.8 mabove the pipe inlet whilst that of the lower reservoir is 1.2 mabove the pipe outlet. At a position 7.5 m horizontally from theupper reservoir, the pipe is required to pass over a barrier.Assuming that the pipe is kept straight between the inlet and thetop of the barrier and that the average friction factor is 0.01,find the greatest height to which the pipe may rise at the barrierif the absolute pressure in the pipe is not to drop below 40 kN/m2.You may ignore losses at the bends in the pipe but all other lossesshould be included in the calculation. Use values for k as given inthe lecture notes. Take atmospheric pressure as 1.013 bar. (ans.:6.04 m above inlet)

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