| Vibrational energy relaxation in shock-heated CO/N2/Ar mixtures |
| He, Dong ; Hong QZ(洪启臻); Pirani, Fernando; Li RJ(李仁杰); Li, Fei; Sun QH(孙泉华); Si T(司廷); Luo XS(罗喜胜)
|
| Corresponding Author | Sun, Quanhua(qsun@imech.ac.cn)
; Si, Ting(tsi@ustc.edu.cn)
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| Source Publication | JOURNAL OF CHEMICAL PHYSICS
(IF:2.997[JCR-2018],2.84[5-Year]) |
| 2024-06-14
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| Volume | 160Issue:22Pages:16 |
| ISSN | 0021-9606
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| Abstract | Experimental and numerical studies were performed on the vibrational energy relaxation in shock-heated CO/N-2/Ar mixtures. A laser absorption technique was applied to the time-dependent rovibrational temperature time-history measurements. The vibrational relaxation data of reflected-shock-heated CO were summarized at 1720-3230 K. In shock-tube experiments, the rotational temperature of CO quickly reached equilibrium, whereas a relaxation process was found in the time-dependent vibrational temperature. For the mixture with 1.0% CO and 10.0% N-2, the vibrational excitation caused a decrease in the macroscopic thermodynamic temperature of the test gas. In the simulations, the state-to-state (StS) approach was employed, where the vibrational energy levels of CO and N-2 are treated as pseudo-species. The vibrational state-specific inelastic rate coefficients of N-2-Ar collisions were calculated using the mixed quantum-classical method based on a newly developed three-dimensional potential energy surface. The StS predictions agreed well with the measurements, whereas deviations were found between the Schwartz-Slawsky-Herzfeld formula predictions and the measurements. The Millikan-White vibrational relaxation data of the N-2-Ar system were found to have the most significant impact on the model predictions via sensitivity analysis. The vibrational relaxation data of the N-2-Ar system were then modified according to the experimental data and StS results, providing an indirect way to optimize the vibrational relaxation data of a specific system. Moreover, the vibrational distribution functions of CO and N-2 and the effects of the vibration-vibration-translation energy transfer path on the thermal nonequilibrium behaviors were highlighted. |
| DOI | 10.1063/5.0212823
|
| Indexed By | SCI
; EI
|
| Language | 英语
|
| WOS ID | WOS:001250816400004
|
| WOS Keyword | CARBON-MONOXIDE
; CO
; DISSOCIATION
; KINETICS
; EXCHANGE
; LASER
; N-2
; COMBUSTION
; MOLECULES
; NITROGEN
|
| WOS Research Area | Chemistry
; Physics
|
| WOS Subject | Chemistry, Physical
; Physics, Atomic, Molecular & Chemical
|
| Funding Project | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0620201]
; Frontier scientific research program of Deep Space Exploration Laboratory[2022-QYKYJH-HXYF-019]
; National Natural Science Foundation of China[12027801]
; National Natural Science Foundation of China[12302391]
; National Natural Science Foundation of China[12388101]
; China Postdoctoral Science Foundation[2022M723233]
|
| Funding Organization | Strategic Priority Research Program of the Chinese Academy of Sciences
; Frontier scientific research program of Deep Space Exploration Laboratory
; National Natural Science Foundation of China
; China Postdoctoral Science Foundation
|
| Classification | 二类/Q1
|
| Ranking | 1
|
| Citation statistics |
|
| Document Type | 期刊论文
|
| Identifier | http://dspace.imech.ac.cn/handle/311007/95767
|
| Collection | 高温气体动力学国家重点实验室
|
Recommended Citation
GB/T 7714 |
He, Dong,Hong QZ,Pirani, Fernando,et al. Vibrational energy relaxation in shock-heated CO/N2/Ar mixtures[J]. JOURNAL OF CHEMICAL PHYSICS,2024,160,22,:16.
|
| APA |
He, Dong.,洪启臻.,Pirani, Fernando.,李仁杰.,Li, Fei.,...&罗喜胜.(2024).Vibrational energy relaxation in shock-heated CO/N2/Ar mixtures.JOURNAL OF CHEMICAL PHYSICS,160(22),16.
|
| MLA |
He, Dong,et al."Vibrational energy relaxation in shock-heated CO/N2/Ar mixtures".JOURNAL OF CHEMICAL PHYSICS 160.22(2024):16.
|
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