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Matem. Mod., 2013, Volume 25, Number 9, Pages 75–84 (Mi mm3402)  

Simulation of the process of self-oscillations in a supersonic jet impinging on a Hartmann tube

O. V. Bocharova

Lomonosov Moscow State University

Abstract: The fluctuating process of the interaction between a supersonic jet and a hollow obstacle is numerically investigated. The calculations are performed using the Godunov method. In the calculations both the physical parameters (Mach number and exit-to-ambient jet pressure ratio) and the geometric parameters (longitudinal and transverse tube dimensions and the nozzle/tube spacing) are varied. The fluctuating processes of two types are revealed, namely, the high- and low-frequency processes, differing in the occurring flow pattern. It is concluded that in the case of supersonic jets the fluctuation occurrence is due to the excitation of the natural oscillations of a cylindrical resonator.

Keywords: supersonic jets, interaction with obstacles, fluctuations, resonators, Godunov method.

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Received: 15.03.2013

Citation: O. V. Bocharova, “Simulation of the process of self-oscillations in a supersonic jet impinging on a Hartmann tube”, Matem. Mod., 25:9 (2013), 75–84

Citation in format AMSBIB
\Bibitem{Boc13}
\by O.~V.~Bocharova
\paper Simulation of the process of self-oscillations in a supersonic jet impinging on a Hartmann tube
\jour Matem. Mod.
\yr 2013
\vol 25
\issue 9
\pages 75--84
\mathnet{http://mi.mathnet.ru/mm3402}
\mathscinet{http://www.ams.org/mathscinet-getitem?mr=3203280}


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