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Nonequilibrium Ionization in Hypersonic Air Flow around a Blunt Wedge of Finite Dimensions at an Angle of Attack

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Abstract

A computational–theoretical model is developed for a nonequilibrium flow around a blunt wedge of finite dimensions by a hypersonic airflow at an angle of attack taking into account ionization. The results of mathematical modeling of the gas-dynamic and kinetics processes of chemical transformations, dissociation, and ionization, as well as the nonequilibrium excitation of vibrational degrees of freedom of diatomic molecules in the regions of compression and rarefaction of the flow and in the regions of separated flow and near wake at the velocity corresponding to the Mach number M = 16, are presented.

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Funding

This work was carried out on the topic of a State Assignment of the Russian Academy of Sciences (state registration no. AAAA-A20-120011690135-5) and in part with the support of the Russian Foundation for Basic Research (project no. 19-01-00515).

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Authors and Affiliations

  1. Ishlinskii Institute for Problems in Mechanics, Russian Academy of Sciences, 117526, Moscow, Russia

    S. T. Surzhikov

  2. Dukhov Automatics Research Institute, 127055, Moscow, Russia

    S. T. Surzhikov

Authors
  1. S. T. Surzhikov
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Correspondence to S. T. Surzhikov.

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Translated by V. Bukhanov

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Surzhikov, S.T. Nonequilibrium Ionization in Hypersonic Air Flow around a Blunt Wedge of Finite Dimensions at an Angle of Attack. Dokl. Phys. 67, 51–57 (2022). https://doi.org/10.1134/S1028335822020082

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  • DOI: https://doi.org/10.1134/S1028335822020082

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