A modern venturi nozzle is tested in a laboratory fl ow with water at 208C. The pipe
Chapter 6, Problem p6.159(choose chapter or problem)
A modern venturi nozzle is tested in a laboratory fl ow with water at 208C. The pipe diameter is 5.5 cm, and the venturi throat diameter is 3.5 cm. The fl ow rate is measured by a weigh tank and the pressure drop by a watermercury manometer. The mass fl ow rate and manometer readings are as follows: m # , kg/s 0.95 1.98 2.99 5.06 8.15 h, mm 3.7 15.9 36.2 102.4 264.4 Use these data to plot a calibration curve of venturi discharge coeffi cient versus Reynolds number. Compare with the accepted correlation, Eq. (6.114).
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