@inproceedings{9f74abfa085c4e798887c99fc72050f2,
title = "Calculation of vibrational relaxation times in carbon dioxide using forced harmonic oscillator model",
abstract = "The study is devoted to the evaluation of vibrational relaxation times in carbon dioxide using the kinetic theory methods. There are several relaxation channels in CO2, such as vibrational-translational energy transitions within modes and vibrational-vibrational exchanges between different modes. The theoretical expressions for the relaxation times of such processes are derived; they depend on the energy variation in a specific collision and cross sections of corresponding transitions. The first-order perturbation theory as well as two modifications of the forced harmonic oscillator (FHO) model are implemented for the transition probabilities. Relaxation times are evaluated in the temperature range 500-10000 K; it is shown that they are strongly affected by the cross section model. It is found that the FHO model provides good agreement with experimental data at low and moderate temperatures; at high temperatures, both models give non-monotonic trends for the relaxation times. The reasons of such behaviour are analysed.",
author = "E. Kustova and M. Mekhonoshina",
note = "Publisher Copyright: {\textcopyright} 2021 Author(s). Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; 20th International Conference on the Methods of Aerophysical Research, ICMAR 2020 ; Conference date: 01-11-2020 Through 07-11-2020",
year = "2021",
month = may,
day = "24",
doi = "10.1063/5.0052238",
language = "English",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics",
pages = "96--97",
editor = "Fomin, {Vasily M.} and Alexander Shiplyuk",
booktitle = "International Conference on the Methods of Aerophysical Research, ICMAR 2020",
address = "United States",
}