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Fluctuations in cavities in a supersonic gas flow

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Abstract

Numerical calculations are carried out within the framework of the ideal compressible gas model for the unsteady flows in rectangular cavities exposed to a supersonic external stream. The Euler equations are integrated by means of Godunov's finite-difference method [6]. On the basis of an analysis of the calculation results an expression is proposed for determining the possible frequencies of the flow rate oscillations in the cavity as a function of the free-stream Mach number M∞ and the geometry of the cavity. The results obtained are compared with the experimental data and calculations of other authors.

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Literature cited

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Authors and Affiliations

  1. Moscow, Khar'kov

    N. L. Zaugol'nikov, M. A. Koval' & A. I. Shvets

Authors
  1. N. L. Zaugol'nikov
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  2. M. A. Koval'
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  3. A. I. Shvets
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 2, pp. 121–127, March–April, 1990.

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Zaugol'nikov, N.L., Koval', M.A. & Shvets, A.I. Fluctuations in cavities in a supersonic gas flow. Fluid Dyn 25, 266–272 (1990). https://doi.org/10.1007/BF01058979

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  • DOI: https://doi.org/10.1007/BF01058979

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