Abstract
The effect of various vibrational transitions on the formation of non-equilibrium distributions, rates of vibrational relaxation and chemical reactions, and fluid dynamics in CO2 flows is discussed. Several state-resolved models are applied: The most detailed model taking into account all kinds of vibrational energy exchanges and coupling of CO2 vibrational modes as well as reduced models with limited number of vibrational states and kinetic processes. It is shown that vibrational transitions between different CO2 modes and between CO2 asymmetric mode and CO molecules may significantly affect the rate of vibrational relaxation and dissociation. Whereas vibrational distributions strongly depend on the processes included to the kinetic scheme, the heat flux is practically insensitive to the vibrational kinetics and can be evaluated using simplified models.
| Original language | English |
|---|---|
| Title of host publication | 31st International Symposium on Rarefied Gas Dynamics, RGD 2018 |
| Publisher | American Institute of Physics |
| Number of pages | 10 |
| ISBN (Print) | 9780735418745 |
| DOIs | |
| Publication status | Published - 5 Aug 2019 |
| Event | 31st International Symposium on Rarefied Gas Dynamics, RGD 2018 - Glasgow Duration: 23 Jul 2018 → 27 Jul 2018 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Publisher | American Institute of Physics |
| Number | 1 |
| Volume | 2132 |
| ISSN (Print) | 0094-243X |
Conference
| Conference | 31st International Symposium on Rarefied Gas Dynamics, RGD 2018 |
|---|---|
| Country | United Kingdom |
| City | Glasgow |
| Period | 23/07/18 → 27/07/18 |
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Scopus subject areas
- Physics and Astronomy(all)
- Ecology
Cite this
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State-resolved models of vibration-dissociation coupling in carbon dioxide. / Kustova, E.; Armenise, I.
31st International Symposium on Rarefied Gas Dynamics, RGD 2018. American Institute of Physics, 2019. 150002 (AIP Conference Proceedings; Vol. 2132, No. 1).Research output
TY - GEN
T1 - State-resolved models of vibration-dissociation coupling in carbon dioxide
AU - Kustova, E.
AU - Armenise, I.
PY - 2019/8/5
Y1 - 2019/8/5
N2 - The effect of various vibrational transitions on the formation of non-equilibrium distributions, rates of vibrational relaxation and chemical reactions, and fluid dynamics in CO2 flows is discussed. Several state-resolved models are applied: The most detailed model taking into account all kinds of vibrational energy exchanges and coupling of CO2 vibrational modes as well as reduced models with limited number of vibrational states and kinetic processes. It is shown that vibrational transitions between different CO2 modes and between CO2 asymmetric mode and CO molecules may significantly affect the rate of vibrational relaxation and dissociation. Whereas vibrational distributions strongly depend on the processes included to the kinetic scheme, the heat flux is practically insensitive to the vibrational kinetics and can be evaluated using simplified models.
AB - The effect of various vibrational transitions on the formation of non-equilibrium distributions, rates of vibrational relaxation and chemical reactions, and fluid dynamics in CO2 flows is discussed. Several state-resolved models are applied: The most detailed model taking into account all kinds of vibrational energy exchanges and coupling of CO2 vibrational modes as well as reduced models with limited number of vibrational states and kinetic processes. It is shown that vibrational transitions between different CO2 modes and between CO2 asymmetric mode and CO molecules may significantly affect the rate of vibrational relaxation and dissociation. Whereas vibrational distributions strongly depend on the processes included to the kinetic scheme, the heat flux is practically insensitive to the vibrational kinetics and can be evaluated using simplified models.
UR - http://www.scopus.com/inward/record.url?scp=85070688130&partnerID=8YFLogxK
U2 - 10.1063/1.5119642
DO - 10.1063/1.5119642
M3 - Conference contribution
AN - SCOPUS:85070688130
SN - 9780735418745
T3 - AIP Conference Proceedings
BT - 31st International Symposium on Rarefied Gas Dynamics, RGD 2018
PB - American Institute of Physics
ER -