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Electron Density and Temperature in a Transverse–Longitudinal Discharge Plasma in High-Speed Airflows

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Abstract

The paper presents the results of experimental studies of the parameters of unsteady pulsating transverse–longitudinal discharge plasma created in high-speed airflows. It is experimentally shown that, under the conditions of the discharge under study, the electron density in the channel plasma of a pulsating discharge increases from ~1016 to 4 × 1016 cm–3 with an increase in the discharge current from 4 to 16 A and increases with an increase in the flow velocity at a constant value of the discharge current. It is also shown that the electron temperature in the pulsating discharge plasma is about 1 eV and the channel plasma is a strongly ionized medium, the degree of ionization of which increases from 1 to 30% upon transition from subsonic to supersonic air flows.

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Funding

Konstantin Kornev is a grantee of the Foundation for the Development of Theoretical Physics and Mathematics “BASIS” and thanks it for its financial support.

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Authors and Affiliations

  1. Faculty of Physics, Moscow State University, 119234, Moscow, Russia

    V. M. Shibkov, K. N. Kornev, A. A. Logunov & Yu. K. Nesterenko

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  1. V. M. Shibkov
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  2. K. N. Kornev
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  3. A. A. Logunov
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  4. Yu. K. Nesterenko
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Correspondence to V. M. Shibkov.

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Translated by E. Chernokozhin

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Shibkov, V.M., Kornev, K.N., Logunov, A.A. et al. Electron Density and Temperature in a Transverse–Longitudinal Discharge Plasma in High-Speed Airflows. Plasma Phys. Rep. 48, 806–811 (2022). https://doi.org/10.1134/S1063780X22700258

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