Experimental and numerical studies on the thermal nonequilibrium behaviors of CO with Ar, He, and H2
文献类型：期刊论文
| 作者 | He, Dong2,3 ; Hong, Qizhen2; Li, Fei2; Sun, Quanhua1,2; Si, Ting2,3; Luo, Xisheng2,3; Sun QH(孙泉华); Li F(李飞); Hong QZ(洪启臻)
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| 刊名 | JOURNAL OF CHEMICAL PHYSICS
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| 出版日期 | 2023-12-21 |
| 卷号 | 159期号:23页码:16 |
| ISSN号 | 0021-9606 |
| DOI | 10.1063/5.0176176 |
| 通讯作者 | Sun, Quanhua(qsun@imech.ac.cn) ; Si, Ting(tsi@ustc.edu.cn) |
| 英文摘要 | The time-dependent rotational and vibrational temperatures were measured to study the shock-heated thermal nonequilibrium behaviors of CO with Ar, He, and H-2 as collision partners. Three interference-free transition lines in the fundamental vibrational band of CO were applied to the fast, in situ, and state-specific measurements. Vibrational relaxation times of CO were summarized over a temperature range of 1110-2820 K behind reflected shocks. The measured rotational temperature instantaneously reached an equilibrium state behind shock waves. The measured vibrational temperature experienced a relaxation process before reaching the equilibrium state. The measured vibrational temperature time histories were compared with predictions based on the Landau-Teller model and the state-to-state approach. The state-to-state approach treats the vibrational energy levels of CO as pseudo-species and accurately describes the detailed thermal nonequilibrium processes behind shock waves. The datasets of state-specific inelastic rate coefficients of CO-Ar, CO-He, CO-CO, and CO-H-2 collisions were calculated in this study using the mixed quantum-classical method and the semiclassical forced harmonic oscillator model. The predictions based on the state-to-state approach agreed well with the measured data and nonequilibrium (non-Boltzmann) vibrational distributions were found in the post-shock regions, while the Landau-Teller model predicted slower vibrational temperature time histories than the measured data. Modifications were applied to the Millikan-White vibrational relaxation data of the CO-Ar and CO-H-2 systems to improve the performance of the Landau-Teller model. In addition, the thermal nonequilibrium processes behind incident shocks, the acceleration effects of H2O on the relaxation process of CO, and the characterization of vibrational temperature were highlighted. |
| WOS关键词 | VIBRATIONAL-RELAXATION ; SHOCK-TUBE ; CARBON-MONOXIDE ; LASER-ABSORPTION ; DISSOCIATION ; COMBUSTION ; MIXTURES ; SPECTROSCOPY ; RADIATION ; IGNITION |
| 资助项目 | 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] ; China Postdoctoral Science Foundation[2021M703084] ; China Postdoctoral Science Foundation[2022M723233] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001126711900006 |
| 资助机构 | Frontier scientific research program of Deep Space Exploration Laboratory ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/93764]  |
| 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.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 3.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,Li, Fei,et al. Experimental and numerical studies on the thermal nonequilibrium behaviors of CO with Ar, He, and H2[J]. JOURNAL OF CHEMICAL PHYSICS,2023,159(23):16. |
| APA | He, Dong.,Hong, Qizhen.,Li, Fei.,Sun, Quanhua.,Si, Ting.,...&洪启臻.(2023).Experimental and numerical studies on the thermal nonequilibrium behaviors of CO with Ar, He, and H2.JOURNAL OF CHEMICAL PHYSICS,159(23),16. |
| MLA | He, Dong,et al."Experimental and numerical studies on the thermal nonequilibrium behaviors of CO with Ar, He, and H2".JOURNAL OF CHEMICAL PHYSICS 159.23(2023):16. |
入库方式： OAI收割
来源：力学研究所
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