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Effect of external flow on the flow rate of a gas discharged through an orifice

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Abstract

The dependence of the flow coefficient of a gas jet ejected from an orifice/nozzle into a subsonic/transonic cross-flow on the flow and the jet Mach numbers, the off-design ratio, the nozzle inclination angle, β, and other determining parameters is considered. The physical nozzle flow pattern is constructed on the basis of experimental data obtained for 0.3< M∞<1.75 and β=60°, 90°, and 120°. The results of measuring the pressure upstream and downstream of the orifice and on the windward and leeward orifice generators are presented. It is shown that the flow rate coefficient of a jet ejected into a cross-flow may exceed that of a similar jet outflowing into a flooded space.

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Authors
  1. A. I. Usmanov
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Additional information

Moscow. Translated from Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, No. 3, pp. 65–70, May–June, 1998.

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Usmanov, A.I. Effect of external flow on the flow rate of a gas discharged through an orifice. Fluid Dyn 33, 351–354 (1998). https://doi.org/10.1007/BF02698184

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  • DOI: https://doi.org/10.1007/BF02698184

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