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Unsteady and nonequilibrium airflow near a stagnation line

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Abstract

The propagation of shock waves in a medium with a nonuniform distribution of the parameters is the subject of recently published research [1–3]. The present paper deals with the problem of the gas flow ahead of the forward point of a blunt body moving at supersonic speed in air with variable parameters. The chemical reaction processes behind the shock front are taken into account. As a result of numerical calculations by the method of characteristics with isolation of the forward shock the time-dependent position of the shock front and the distributions of the composition and gas dynamic parameters in the shock layer are found.

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Literature cited

  1. F. V. Shugaev, Interaction of Shock Waves and Perturbations [in Russian], Izd. MGU, Moscow (1983).

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  2. A. I. Klimov, A. N. Koblov, G. I. Mishin, Yu. L. Serov, and I. P. Yavor, “Propagation of shock waves in a glow discharge plasma,” Pis'ma Zh. Tekh. Fiz.,8, 439 (1982).

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  3. S. Ya. Bronin, M. B. Zheleznyak, A. Kh. Mnatsakanyan, and S. V. Pervukhin, “Unsteady flow near the stagnation line for a blunt body in a variable-density gas flow,” Preprint No. 1-164 [in Russian], Institute of High Temperatures, USSR Academy of Sciences, Moscow (1985).

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  4. Nonequilibrium Physicochemical Processes in Aerodynamics [in Russian], Mashinostroenie, Moscow (1972).

  5. V. M. Paskonov and L. Ya. Shlyapochnik, “Calculation of ideal gas flow in the neighborhood of the stagnation line on blunt bodies,” in: Computational Methods and Programming, Vol. 11 [in Russian], Izd. MGU, Moscow (1968), pp. 139–146.

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Authors and Affiliations

  1. Moscow

    M. B. Zheleznyak, A. Kh. Mnatsakanyan & S. V. Pervukhin

Authors
  1. M. B. Zheleznyak
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  2. A. Kh. Mnatsakanyan
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  3. S. V. Pervukhin
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 6, pp. 170–172, November–December, 1986.

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Zheleznyak, M.B., Mnatsakanyan, A.K. & Pervukhin, S.V. Unsteady and nonequilibrium airflow near a stagnation line. Fluid Dyn 21, 993–996 (1986). https://doi.org/10.1007/BF02628042

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  • DOI: https://doi.org/10.1007/BF02628042

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