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Fizika Goreniya i Vzryva, 2012, Volume 48, Issue 4, Pages 51–57 (Mi fgv1020)  
Mathematical model for the initiation of intense acoustic vibrations in a ramjet ejector combustor and their suppression by resonators

V. B. Kurzin

Lavrent’ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Abstract: A mathematical model is constructed to describe the mechanism of intense acoustic vibrations in a ramjet ejector combustor based on the instability of natural acoustic vibrations in the combustor due to jet exhaust. The feedback necessary for the onset of instability of acoustic waves is taken to be their interaction with the unsteady gas motion induced by the vortex sheet from the trailing edges of the combustor. An algorithm for suppressing intense acoustic vibrations in the combustor using resonators is developed. The obtained theoretical results are compared with the results of experimental studies.
Keywords: combustor, acoustic vibrations, natural frequency, jet instability, resonator.
Received: 21.12.2010
Accepted: 10.10.2011
English version:
Combustion, Explosion and Shock Waves, 2012, Volume 48, Issue 4, Pages 418–423
DOI: https://doi.org/10.1134/S0010508212040065
Bibliographic databases:
Document Type: Article
UDC: 536.46:532.5+534
Language: Russian
Citation: V. B. Kurzin, “Mathematical model for the initiation of intense acoustic vibrations in a ramjet ejector combustor and their suppression by resonators”, Fizika Goreniya i Vzryva, 48:4 (2012), 51–57; Combustion, Explosion and Shock Waves, 48:4 (2012), 418–423
Citation in format AMSBIB
\Bibitem{Kur12}
\by V.~B.~Kurzin
\paper Mathematical model for the initiation of intense acoustic vibrations in a ramjet ejector combustor and their suppression by resonators
\jour Fizika Goreniya i Vzryva
\yr 2012
\vol 48
\issue 4
\pages 51--57
\mathnet{http://mi.mathnet.ru/fgv1020}
\elib{https://elibrary.ru/item.asp?id=17974563}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2012
\vol 48
\issue 4
\pages 418--423
\crossref{https://doi.org/10.1134/S0010508212040065}
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