Calculation of vibrational relaxation times in carbon dioxide using forced harmonic oscillator model

Standard

Calculation of vibrational relaxation times in carbon dioxide using forced harmonic oscillator model. / Kustova, E.; Mekhonoshina, M.

International Conference on the Methods of Aerophysical Research, ICMAR 2020. ed. / Vasily M. Fomin; Alexander Shiplyuk. American Institute of Physics, 2021. p. 96-97 040031 (AIP Conference Proceedings; Vol. 2351).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review

Harvard

Kustova, E & Mekhonoshina, M 2021, Calculation of vibrational relaxation times in carbon dioxide using forced harmonic oscillator model. in VM Fomin & A Shiplyuk (eds), International Conference on the Methods of Aerophysical Research, ICMAR 2020., 040031, AIP Conference Proceedings, vol. 2351, American Institute of Physics, pp. 96-97, 20th International Conference on the Methods of Aerophysical Research, ICMAR 2020, Akademgorodok, Novosibirsk, Russian Federation, 1/11/20. https://doi.org/10.1063/5.0052238

APA

Kustova, E., & Mekhonoshina, M. (2021). Calculation of vibrational relaxation times in carbon dioxide using forced harmonic oscillator model. In V. M. Fomin, & A. Shiplyuk (Eds.), International Conference on the Methods of Aerophysical Research, ICMAR 2020 (pp. 96-97). [040031] (AIP Conference Proceedings; Vol. 2351). American Institute of Physics. https://doi.org/10.1063/5.0052238

Vancouver

Kustova E , Mekhonoshina M. Calculation of vibrational relaxation times in carbon dioxide using forced harmonic oscillator model. In Fomin VM, Shiplyuk A, editors, International Conference on the Methods of Aerophysical Research, ICMAR 2020. American Institute of Physics. 2021. p. 96-97. 040031. (AIP Conference Proceedings). https://doi.org/10.1063/5.0052238

Author

Kustova, E. ; Mekhonoshina, M. / Calculation of vibrational relaxation times in carbon dioxide using forced harmonic oscillator model. International Conference on the Methods of Aerophysical Research, ICMAR 2020. editor / Vasily M. Fomin ; Alexander Shiplyuk. American Institute of Physics, 2021. pp. 96-97 (AIP Conference Proceedings).

BibTeX

@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",

}

RIS

TY - GEN

T1 - Calculation of vibrational relaxation times in carbon dioxide using forced harmonic oscillator model

AU - Kustova, E.

AU - Mekhonoshina, M.

PY - 2021/5/24

Y1 - 2021/5/24

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85107227230&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/4c978383-40c5-315f-a817-da91f1349675/

U2 - 10.1063/5.0052238

DO - 10.1063/5.0052238

M3 - Conference contribution

AN - SCOPUS:85107227230

T3 - AIP Conference Proceedings

SP - 96

EP - 97

BT - International Conference on the Methods of Aerophysical Research, ICMAR 2020

A2 - Fomin, Vasily M.

A2 - Shiplyuk, Alexander

PB - American Institute of Physics

T2 - 20th International Conference on the Methods of Aerophysical Research, ICMAR 2020

Y2 - 1 November 2020 through 7 November 2020

ER -

ID: 70965475