Vibrational energy relaxation in shock-heated CO/N<sub>2</sub>/Ar mixtures

doi:10.1063/5.0212823

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Vibrational energy relaxation in shock-heated CO/N₂/Ar mixtures
	He, Dong 3,4; Hong, Qizhen 3; Pirani, Fernando 2; Li, Renjie 1,3; Li, Fei 3; Sun, Quanhua 1,3; Si, Ting 3,4; Luo, Xisheng 3,4
刊名	JOURNAL OF CHEMICAL PHYSICS
	2024-06-14
卷号	160 期号:22 页码:16
ISSN号	0021-9606
DOI	10.1063/5.0212823
通讯作者	Sun, Quanhua(qsun@imech.ac.cn) ; Si, Ting(tsi@ustc.edu.cn)
英文摘要	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.
资助项目	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]
WOS关键词	CARBON-MONOXIDE ; CO ; DISSOCIATION ; KINETICS ; EXCHANGE ; LASER ; N-2 ; COMBUSTION ; MOLECULES ; NITROGEN
WOS研究方向	Chemistry ; Physics
语种	英语
WOS记录号	WOS:001250816400004
资助机构	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
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/95766]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Sun, Quanhua; Si, Ting
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Univ Perugia, Dipartimento Chim Biol & Biotecnol, I-06123 Perugia, Italy 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 4.Univ Sci & Technol China, Dept Modern Mech, Deep Space Explorat Lab, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	He, Dong,Hong, Qizhen,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.,Hong, Qizhen.,Pirani, Fernando.,Li, Renjie.,Li, Fei.,...&Luo, Xisheng.(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.