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On the appearance of self-oscillatory conditions of gas and gas-droplet mixture flow out of a vessel into a counterpressure medium

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Journal of Engineering Physics and Thermophysics Aims and scope

The present paper discusses the problem of flow of a gas and a gas-dispersion mixture out of a vessel with given pressure and stagnation temperature through a channel into a medium with a given pressure. The influence of energy and gas mass supplies distributed over the channel length, as well as of the kind of injected gas and its combustion, on the flow character is analyzed. On the basis of the analysis of the results of the numerical solution of quasi-one-dimensional dynamic equations of the gas and the gas-dispersion mixture, it has been shown that at a certain intensity of the considered actions the transition of the flow conditions from stationary to self-oscillatory ones can take place. From the viewpoint of the homogeneous and two-velocitytwo-temperature models of the gas-droplet mixture the main laws of the influence of droplet evaporation on the parameters of this transition have been elucidated.

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References

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Authors and Affiliations

  1. Institute of Engineering Mechanics, National Academy of Sciences of Ukraine and NKA of Ukraine, 15 Leshko-Popel’ Str., Dnepropetrovsk, 49005, Ukraine

    V. I. Timoshenko & V. P. Galinskii

Authors
  1. V. I. Timoshenko
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  2. V. P. Galinskii
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Correspondence to V. I. Timoshenko.

Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 86, No. 1, pp. 116–125, January–February, 2013.

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Timoshenko, V.I., Galinskii, V.P. On the appearance of self-oscillatory conditions of gas and gas-droplet mixture flow out of a vessel into a counterpressure medium. J Eng Phys Thermophy 86, 120–130 (2013). https://doi.org/10.1007/s10891-013-0812-4

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  • DOI: https://doi.org/10.1007/s10891-013-0812-4

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