Document Type

Article

Publication Date

2023

DOI

10.3390/plasma6010014

Publication Title

Plasma

Volume

6

Issue

1

Pages

181-197

Abstract

The evolution in the post shock nonequilibrium relaxation in a hypersonic plasma flow was investigated during a shock’s reflection off a thermal discontinuity. Within a transitional period, the relaxation zone parameters past both, the reflected and transmitted waves, evolve differently compared to that in the incident wave. In a numerical example for the non-dissociating N2 gas heated to 5000 K/10,000 K across the interface and M = 3.5, the relaxation time for the transmitted wave is up to 50% shorter and the relaxation depth for both waves is significantly reduced, thus resulting in a weakened wave structure. The results of extension into larger values of heating strength and the shock Mach numbers are discussed. The findings can be useful in the areas of research involving strong shocks interacting with optical discharges or other heated media on the scale where the shock structure becomes important.

Rights

Copyright: © 2023 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).

Comments

Non-peer reviewed preprint available at Preprints.org. https://www.preprints.org/manuscript/202301.0135/v1

Preprint DOI: 10.20944/preprints202301.0135.v1

Original Publication Citation

Markhotok, A. (2023). The post-shock nonequilibrium relaxation in a hypersonic plasma flow involving reflection off a thermal discontinuity. Plasma 6(1), 181-197. https://doi.org/10.3390/plasma6010014

ORCID

0000-0002-2599-6671 (Markhotok)

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