The discharge coefficient, of a planar, submerged slit-jet has been determined experimentally over a relatively wide range of Reynolds number values: where the slit width (w) and the average streamwise velocity (〈U〉) at the exit plane are used to define the Reynolds number. The values exhibit a strong dependence on Re for For achieves an apparent asymptotic value of 0.687 for the present nozzle design. This value is about 12% higher than the potential flow value. In contrast, the velocity distribution along the centerline was in excellent agreement with that of the potential flow solution. The experimental techniques that were used to evaluate the values, their numerical values, the corresponding uncertainties, and the possible influence of the geometrical design of the nozzle on the results are presented.
The Discharge Coefficient of a Planar Submerged Slit-Jet
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division June 19, 2000; revised manuscript received February 28, 2003. Associate Editors: B. Schiavello.
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Ali, S. K., and Foss, J. F. (August 27, 2003). "The Discharge Coefficient of a Planar Submerged Slit-Jet ." ASME. J. Fluids Eng. July 2003; 125(4): 613–619. https://doi.org/10.1115/1.1593712
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