Journal of Applied Mechanics and Technical Physics

, Volume 58, Issue 6, pp 1040–1052 | Cite as

Model for the Formation of Acoustic Self-Oscillations in a Chamber with a Jet Flowing Through its Nozzle

Article

Abstract

This paper describes free acoustic oscillations of gas in a chamber with a jet flowing through its nozzle in the case of nonstationary intensity component of vortex sheet flowing down from the edge of the nozzle. There is established feedback between acoustic oscillations and oscillations induced by a corresponding vortex sheet component. It is shown that, in the presence of given feedback, there could be instability of acoustic oscillations, which would result in acoustic self-oscillations in the chamber. The boundaries of the domain in which instability is formed are determined by developing a mathematical model of stable acoustic oscillations in the chamber with account for the influence of the vortex sheet.

Keywords

chamber jet vortex sheet acoustic oscillations feedback instability self-oscillation 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  1. 1.Lavrentyev Institute of Hydrodynamics, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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