A 1.75km horizontal pipe, 0.9m in diameter, is supplied by a constant-head tank. The water level in the tank is 15 m abo

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answerhappygod
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A 1.75km horizontal pipe, 0.9m in diameter, is supplied by a constant-head tank. The water level in the tank is 15 m abo

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A 1.75km horizontal pipe, 0.9m in diameter, is supplied by aconstant-head tank. The waterlevel in the tank is 15 m above the discharge point of the pipe.The pipe discharges directlyinto the atmosphere, with the flow controlled by a valve at itsend.Calculate the pressure rise at the valve for a rigid water columnif the valve is closed in 5.0seconds. You may assume a constant friction factor, f, of 0.0075.How does this valuecompare with that obtained if fully compressible flow conditionswere assumed?
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