Rebuilding experimental nonequilibrium radiation in shock-heated Martian-like mixture flows using electronic state-to-state approach | |
Hong QZ(洪启臻); Wang XY(王小永); Hu Y(胡远); Lin X(林鑫); Sun QH(孙泉华) | |
会议录名称 | INTERNATIONAL JOURNAL OF MODERN PHYSICS B |
2020 | |
页码 | 2040084 |
会议名称 | 8th International Symposium on Physics of Fluids (ISPF) |
会议日期 | JUN 10-13, 2019 |
会议地点 | Xian, PEOPLES R CHINA |
摘要 | An electronic state-to-state approach is developed to reproduce numerically the radiative processes in the experiments on the Electric Arc Shock Tube facility at NASA Ames Research Center. The experiments measured the spectral radiance of C-2 Swan band and CO 4th Positive band behind the strong shock wave in a Martian-like mixture. The present state-to-state approach solves the electronic states of strong radiators by integrating the collisional-radiative model into the master equations in the frame of Euler equations. Particularly, the electron impact dissociation of CO is included, and the rate coefficients are proposed for the electronic state-specific heavy-particle impact excitation and dissociation of C-2. The nonequilibrium radiation behind the shock is calculated by the line-by-line method, and it is then convoluted using the calibrated smearing function in order to compare with the experiments. The state-specific simulation results is found to agree well with both spectral and spatial measurement data. The simulated electronic state populations of CO and C-2 deviate from Boltzmann distributions significantly, which could explain the failure of previous two-temperature quasi-steady-state based simulations. |
关键词 | Electronic state-to-state approach nonequilibrium radiation Martian-like mixture |
WOS记录号 | WOS:000543802700018 |
资助信息 | Strategic Priority Research Program of Chinese Academy of Sciences [XDA17030100] |
URL | 查看原文 |
收录类别 | CPCI-S |
语种 | 英语 |
引用统计 | |
文献类型 | 会议论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/90522 |
专题 | 高温气体动力学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Hong QZ,Wang XY,Hu Y,et al. Rebuilding experimental nonequilibrium radiation in shock-heated Martian-like mixture flows using electronic state-to-state approach[C]INTERNATIONAL JOURNAL OF MODERN PHYSICS B,2020:2040084. |
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