A pipe of length L = 500 m, diameter D = 300 mm and absolute roughness k = 0.02 mm transports a flow Q = 456 m3/h. Using the Darcy-Weisbach formula determine the hydraulic gradient and headloss through the pipe. The water temperature may be assumed to be 20° C.
A pipe of length L = 500 m, diameter D = 300 mm and absolute roughness k = 0.02 mm transports a flow Q = 456 m3/h. Using the Darcy-Weisbach formula determine the hydraulic gradient and headloss through the pipe. The water temperature may be assumed to be 20° C.
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A pipe of length L = 500 m, diameter D = 300 mm and absolute roughness k = 0.02 mm transports a flow Q = 456 m3/h. Using the Darcy-Weisbach formula determine the hydraulic gradient and headloss through the pipe. The water temperature may be assumed to be 20° C.
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Transcribed Image Text:Problem 4
A pressurized tank of water has a 10-cm-diameter orifice at the
bottom, where water discharges to the atmosphere. The water
level is 2.5 m above the outlet. The tank air pressure above the
water level is 250 kPa (absolute) while the atmospheric pressure is
100 kPa. Neglecting frictional effects, determine the initial
discharge rate of water from the tank.
-Air
250 kPa
10 cm
2.5 m
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