Emission of Shock-Heated Air in the Vacuum Ultraviolet Spectral Region

Bykova, N. G.; Zabelinskii, I. E.; Kozlov, P. V.; Gerasimov, G. Ya.; Levashov, V. Yu.

doi:10.1134/s1990793123050184

Russ. J. Phys. Chem. B

2023

DOI: 10.1134/s1990793123050184

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Emission of Shock-Heated Air in the Vacuum Ultraviolet Spectral Region

N. G. Bykova,

I. E. Zabelinskii,

P. V. Kozlov

et al.

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2024

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Cited by 2 publications

References 18 publications

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Methods for measuring electron concentration in shock waves

Gerasimov,

Levashov,

Kozlov

et al. 2024

Himičeskaâ fizika

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The current state of research on measuring the electron concentration in low-temperature plasma in the vicinity of a strong shock wave, which simulates the conditions of the descend spacecraft entry into the Earth’s atmosphere is considered. Various physicochemical processes leading to the formation of low-temperature plasma both ahead of the shock wave front and in the shock-heated gas are analyzed. A critical review of various plasma diagnostic methods is made, their advantages and disadvantages are noted. An analysis of numerous experimental data on measuring the electron concentration in various shock-heated gases under various conditions was carried out.

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Methods for measuring electron concentration in shock waves

Gerasimov,

Levashov,

Kozlov

et al. 2024

Himičeskaâ fizika

View full text Add to dashboard Cite

show abstract

Calculation of radiation characteristics of shock heated air by Direct Simulation Monte Carlo method

Kusov,

Bykova,

Gerasimov

et al. 2024

Himičeskaâ fizika

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The results of modeling the radiation characteristics of air behind the front of a strong shock wave, performed using the Direct Simulation Monte Carlo method, are presented. The model used takes into account various physical and chemical processes occurring in shock-heated air, including translational-rotational and translational-vibrational energy exchange, kinetics of chemical reactions, excitation of electronic levels of atoms and molecules, as well as emission and absorption processes for a discrete spectrum. As a result of the calculations, timeintegrated spectrograms of the volumetric radiation power of shock-heated air were obtained in absolute units in the range of shock wave velocities from 7.4 to 10.7 km/s at a gas pressure in front of the shock wave front of 0.25 Torr. The calculation data are compared with experimental data obtained on the double-diaphragm shock tube DDST-M of the Institute of Mechanics of Moscow State University.

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Emission of Shock-Heated Air in the Vacuum Ultraviolet Spectral Region

Cited by 2 publications

References 18 publications

Methods for measuring electron concentration in shock waves

Methods for measuring electron concentration in shock waves

Calculation of radiation characteristics of shock heated air by Direct Simulation Monte Carlo method

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