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  2. 力学研究所
  3. 中国科学院力学研究所
  4. 高温气体动力学国家重点实验室
Radiation investigation behind 4.7 km/s shock waves with nitrogen using a square section shock tube

文献类型：期刊论文

作者Zhang SH(张森豪)2,3; Zhang YZ(张宇哲)2,3; Xu YX(许以欣)2,3; Bai, Tianrui1; Luo K(罗凯)3; Li RJ(李仁杰)2,3; Wang Q(汪球)3; Lin X(林鑫)3; Li F(李飞)3
刊名ACTA MECHANICA SINICA
出版日期2025-03-01
卷号41期号:3页码:10
关键词Nitrogen radiation Non-equilibrium Spectral measurement Shock waves Shock tube
ISSN号0567-7718
DOI10.1007/s10409-024-24258-x
通讯作者Li, Fei(lifei@imech.ac.cn)
英文摘要The thermochemical non-equilibrium phenomena encountered by hypersonic vehicles present significant challenges in their design. To investigate the thermochemical reaction flow behind shock waves, the non-equilibrium radiation in the visible range using a shock tube was studied. Experiments were conducted with a shock velocity of 4.7 km/s, using nitrogen at a pressure of 20 Pa. To address measurement difficulties associated with weak radiation, a special square section shock tube with a side length of 380 mm was utilized. A high-speed camera characterized the shock wave's morphology, and a spectrograph and a monochromator captured the radiation. The spectra were analyzed, and the numerical spectra were compared with experimental results, showing a close match. Temperature changes behind the shock wave were obtained and compared with numerical predictions. The findings indicate that the vibrational temperatures are overestimated, while the vibrational relaxation time is likely underestimated, due to the oversimplified portrayals of the non-equilibrium relaxation process in the models. Additionally, both experimental and simulated time-resolved profiles of radiation intensity at specific wavelengths were analyzed. The gathered data aims to enhance computational fluid dynamics codes and radiation models, improving their predictive accuracy. (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)4.7 km/s(sic)20 Pa(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)380 mm(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic); (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic): (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic); (sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).
分类号二类/Q1
资助项目Key-Area Research and Development Program of Guangdong Province[2021B0909060004] ; National Natural Science Foundation of China[12072355] ; National Natural Science Foundation of China[92271117] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB0620202] ; State Key Laboratory of High Temperature Gas Dynamics
WOS研究方向Engineering ; Mechanics
语种英语
WOS记录号WOS:001324824300006
资助机构Key-Area Research and Development Program of Guangdong Province ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; State Key Laboratory of High Temperature Gas Dynamics
其他责任者Li, Fei
源URL[http://dspace.imech.ac.cn/handle/311007/96856]  
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.Jiangsu Univ Sci & Technol, Sch Energy & Power, Zhenjiang 212100, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
3.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Zhang SH,Zhang YZ,Xu YX,et al. Radiation investigation behind 4.7 km/s shock waves with nitrogen using a square section shock tube[J]. ACTA MECHANICA SINICA,2025,41(3):10.
APA 张森豪.,张宇哲.,许以欣.,Bai, Tianrui.,罗凯.,...&李飞.(2025).Radiation investigation behind 4.7 km/s shock waves with nitrogen using a square section shock tube.ACTA MECHANICA SINICA,41(3),10.
MLA 张森豪,et al."Radiation investigation behind 4.7 km/s shock waves with nitrogen using a square section shock tube".ACTA MECHANICA SINICA 41.3(2025):10.

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