Wednesday 18 May 2011

Fluid Dynamics and Pressure

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A vertical pipe conveying water tapers from 50 mm in diameter at the top to 25 mm in diameter at the bottom in a length of 1.8 m. A pressure gauge is connected at the top section and a second gauge is fitted at the bottom section. What is the flow rate of water when the gauges show a pressure difference between the top section and the bottom one to be 31 kN/m2. (ans.: 0.3 m3/min, 300 kg/min)
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