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On the gas flow rate through a Mach disk in an underexpanded jet

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Journal of Engineering Physics and Thermophysics Aims and scope

An air jet with an excess static pressure at a regime of escape into quiescent air is considered. The range of Mach number variation is 1–3, and that of the inefficiency ratio 1–1000. An analysis has been made on the basis of the well-known experimental-calculated approximation dependences for stationary expanding flows. We solve the inverse problem where the parameters at the nozzle exit and the geometric characteristics of the initial section of the jet are known and it is required to find the remaining quantities corresponding to them. In the present analysis, this is the rate of flow through a central discontinuity and the integral characteristic of the magnitude of the total pressure loss.

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Authors and Affiliations

  1. Joint Institute for High Temperatures, Russian Academy of Sciences, 13 (Bld. 2) Izhorskaya Str., Moscow, 125412, Russia

    A. S. Chizhikov

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  1. A. S. Chizhikov
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 82, No. 2, pp. 320–325, March–April, 2009.

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Chizhikov, A.S. On the gas flow rate through a Mach disk in an underexpanded jet. J Eng Phys Thermophy 82, 315–320 (2009). https://doi.org/10.1007/s10891-009-0192-y

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  • DOI: https://doi.org/10.1007/s10891-009-0192-y

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