Spectral measurements of hypervelocity flow in an expansion tunnel | |
Yuan CK(苑朝凯); Zhou K(周凯); Liu YF(刘云峰); Hu ZM(胡宗民); Jiang ZL(姜宗林) | |
刊名 | ACTA MECHANICA SINICA |
2019-02-01 | |
卷号 | 35期号:1页码:24-31 |
关键词 | Spectral measurement Hypervelocity flow Radiation Expansion tunnel |
ISSN号 | 0567-7718 |
DOI | 10.1007/s10409-018-0806-8 |
英文摘要 | Atmospheric reentry vehicles and planetary probes fly through the atmosphere at hypervelocity speed. At such speed, there is a significant proportion of heat load to the vehicle surface due to radiative heating. Accurate prediction needs a good knowledge of the radiation spectrum properties. In this paper, a high-speed camera and spectrograph coupled to an intensified charge-coupled device have been implemented to investigate the radiation flow over a semi-cylinder model. The experiments were carried out in the JF16 expansion tunnel with secondary shock velocity of 7.9kms(-1). Results show that the emission spectrum comprises several atomic lines and molecular band systems. We give detailed data of the radiation spectrum, shock shape, shock detached distance and radiation intensity varying with space and wavelength. This valuable experimental dataset will be helpful to validate computational fluid dynamics codes and radiation models, which equates to increased prediction accuracy of radiation heating. Also, some suggestions for spectral measurement in hypervelocity flow field were list in the end. |
分类号 | 二类 |
WOS关键词 | RADIATION |
WOS研究方向 | Engineering, Mechanical ; Mechanics |
语种 | 英语 |
WOS记录号 | WOS:000457970100003 |
资助机构 | National Natural Science Foundation of China [11602275, 11672308, 11672312, 11532014] |
其他责任者 | Yuan, CK |
内容类型 | 期刊论文 |
源URL | [http://dspace.imech.ac.cn/handle/311007/78490] |
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.{Yuan, CK、Liu, YF、Hu, ZM、Jiang, ZL} Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.{Yuan, CK、Liu, YF、Hu, ZM、Jiang, ZL} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.{Zhou, K} China Acad Aerosp Aerodynam, Beijing 100074, Peoples R China |
推荐引用方式 GB/T 7714 | Yuan CK,Zhou K,Liu YF,et al. Spectral measurements of hypervelocity flow in an expansion tunnel[J]. ACTA MECHANICA SINICA,2019,35(1):24-31. |
APA | Yuan CK,Zhou K,Liu YF,Hu ZM,&Jiang ZL.(2019).Spectral measurements of hypervelocity flow in an expansion tunnel.ACTA MECHANICA SINICA,35(1),24-31. |
MLA | Yuan CK,et al."Spectral measurements of hypervelocity flow in an expansion tunnel".ACTA MECHANICA SINICA 35.1(2019):24-31. |
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