Water flows from a reservoir into a rigid horizontal pipe whose intake is 52m below the surface elevation of the reservoir. The pipe discharges through a valve into the atmosphere and is 0.6m in diameter and 1.5km long. Assuming a rigid water column calculate the pressure rise at the valve if it is closed in 4.5 seconds. Assume a friction factor of 0.008. If the valve is re-opened at some later time, calculate the time taken for the flow to accelerate to 65% of its steady state value. Answers (120.63m, 8.3s)
Water flows from a reservoir into a rigid horizontal pipe whose intake is 52m below the surface elevation of the reservoir. The pipe discharges through a valve into the atmosphere and is 0.6m in diameter and 1.5km long. Assuming a rigid water column calculate the pressure rise at the valve if it is closed in 4.5 seconds. Assume a friction factor of 0.008. If the valve is re-opened at some later time, calculate the time taken for the flow to accelerate to 65% of its steady state value. Answers (120.63m, 8.3s)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Water flows from a reservoir into a rigid horizontal pipe whose intake is 52m below the surface elevation of the reservoir. The pipe discharges through a valve into the atmosphere and is 0.6m in diameter and 1.5km long. Assuming a rigid water column calculate the pressure rise at the valve if it is closed in 4.5 seconds. Assume a friction factor of 0.008. If the valve is re-opened at some later time, calculate the time taken for the flow to accelerate to 65% of its steady state value.
Answers (120.63m, 8.3s)
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