Discuss the use of orifice plates and venturi-meters for the measurement of flow rates in pipes....
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Discuss the use of orifice plates and venturi-meters for the measurement of flow rates in pipes. Water flows with a mean velocity of 0.6 m/s in a 50 mm diameter pipe fitted with a sharp edged orifice of diameter 30 mm. Assuming the contraction coefficient is 0.64, find the pressure difference between tappings at the vena contracta and a few diameters upstream of the orifice, and hence evaluate the discharge coefficient. Estimate also the overall pressure loss caused by the orifice plate. It may be assumed that there is no loss of energy upstream of the vena contracta. Discuss the use of orifice plates and venturi-meters for the measurement of flow rates in pipes. Water flows with a mean velocity of 0.6 m/s in a 50 mm diameter pipe fitted with a sharp edged orifice of diameter 30 mm. Assuming the contraction coefficient is 0.64, find the pressure difference between tappings at the vena contracta and a few diameters upstream of the orifice, and hence evaluate the discharge coefficient. Estimate also the overall pressure loss caused by the orifice plate. It may be assumed that there is no loss of energy upstream of the vena contracta.
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Related Book For
Engineering Fluid Mechanics
ISBN: 9781118880685
11th Edition
Authors: Donald F. Elger, Barbara A. LeBret, Clayton T. Crowe, John A. Robertson
Posted Date:
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