How much does thermal nonequilibrium influence the overall atomic recombination during de-excitation?
文献类型：期刊论文
| 作者 | Gu, Sangdi1; Hao, Jiaao1; Wen, ChihYung1; Hong QZ(洪启臻)2 ; Wang Q(汪球)2
|
| 刊名 | CHEMICAL PHYSICS
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 580页码:11 |
| 关键词 | Thermochemical nonequilibrium Atomic recombination High -enthalpy flows |
| ISSN号 | 0301-0104 |
| DOI | 10.1016/j.chemphys.2024.112220 |
| 通讯作者 | Gu, Sangdi(sangdi.gu@polyu.edu.hk) |
| 英文摘要 | A parametric study is carried out via state-to-state constant-volume heat bath simulations for binary mixtures of O2/O and N2/N to identify nonequilibrium de-excitation conditions where the overall atomic recombination is influenced by thermal nonequilibrium and where it is not. The most important parameter is found to be the translational temperature at which the de-excitation occurs. A low translational temperature of around 500 K is found to prevent the overall atomic recombination process from being influenced by the thermal nonequilibrium, due to the small value of KEQ making the dissociation reaction less important. At a higher translational temperature of 2000 K, the overall atomic recombination process is influenced by the thermal nonequilibrium to an extent that is comparable to that seen in the corresponding excitation conditions, due to the nonequilibriumaccelerated dissociation rate. The current results have important implications in reduced-order modelling and experimental methods. |
| 分类号 | Q3 |
| WOS关键词 | DISSOCIATION RATES ; VIBRATIONAL-RELAXATION ; RATE CONSTANTS ; MODELS ; AIR ; VALIDATION ; EXCITATION ; OXYGEN |
| 资助项目 | Hong Kong Research Grants Council[15206522] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001184572300001 |
| 资助机构 | Hong Kong Research Grants Council |
| 其他责任者 | Gu, Sangdi |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94637]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Aeronaut & Aviat Engn, Kowloon, Hong Kong, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gu, Sangdi,Hao, Jiaao,Wen, ChihYung,et al. How much does thermal nonequilibrium influence the overall atomic recombination during de-excitation?[J]. CHEMICAL PHYSICS,2024,580:11. |
| APA | Gu, Sangdi,Hao, Jiaao,Wen, ChihYung,洪启臻,&汪球.(2024).How much does thermal nonequilibrium influence the overall atomic recombination during de-excitation?.CHEMICAL PHYSICS,580,11. |
| MLA | Gu, Sangdi,et al."How much does thermal nonequilibrium influence the overall atomic recombination during de-excitation?".CHEMICAL PHYSICS 580(2024):11. |
入库方式： OAI收割
来源：力学研究所
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