Numerical and Experimental Study on the Duration of Nozzle Starting of the Reflected High-Enthalpy Shock Tunnel | |
Yu JP(于江鹏)1,2; Li JP(李进平)2; Wang Q(汪球)2; Zhang XY(张晓源)2; Zhang SZ(张仕忠)2 | |
通讯作者 | Li, Jinping(lijinping@imech.ac.cn) |
发表期刊 | APPLIED SCIENCES-BASEL |
2022-03-01 | |
卷号 | 12期号:6页码:16 |
摘要 | The starting process of the flow in the nozzle of the JF-14 shock tunnel (1.6 m in length, 500 mm in outlet diameter) in the State Key Laboratory of High Temperature Gas Dynamics is analyzed by calculation and experiment. Two key factors which directly affect the duration of the nozzle starting are the velocity of the expansion wave and the low-velocity zone generated by the interaction between the secondary shock wave and boundary layer on the wall surface. In the process of the nozzle starting, the flow field stabilizes at the center of the nozzle outlet first, and then gradually stabilizes along the radius direction, thus defining the central startup and complete startup of the nozzle. It is found that there is a critical initial pressure. When the initial pressure is lower than the critical pressure, the airflow can reach stability in the nozzle outlet center with the shortest time, otherwise, the time required is much longer. The time required for the airflow to stabilize in the whole outlet section is mainly affected by the size of the low-velocity zone. It is also found that only at a very low initial pressure can the airflow simultaneously reach stability at the entire outlet of the nozzle. |
关键词 | nozzle starting high-enthalpy shock tunnel center startup complete startup |
DOI | 10.3390/app12062845 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000776198800001 |
关键词[WOS] | DRIVEN ; THERMOCOUPLES ; COMPUTATION ; SIMULATION ; FLOWS ; T4 |
WOS研究方向 | Chemistry ; Engineering ; Materials Science ; Physics |
WOS类目 | Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied |
资助项目 | National Natural Science Foundation of China[12072352] ; Youth Innovation Promotion Association CAS[2021020] |
项目资助者 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
论文分区 | 二类 |
力学所作者排名 | 1 |
RpAuthor | Li, Jinping |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/88797 |
专题 | 高温气体动力学国家重点实验室 |
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, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Yu JP,Li JP,Wang Q,et al. Numerical and Experimental Study on the Duration of Nozzle Starting of the Reflected High-Enthalpy Shock Tunnel[J]. APPLIED SCIENCES-BASEL,2022,12,6,:16. |
APA | 于江鹏,李进平,汪球,张晓源,&张仕忠.(2022).Numerical and Experimental Study on the Duration of Nozzle Starting of the Reflected High-Enthalpy Shock Tunnel.APPLIED SCIENCES-BASEL,12(6),16. |
MLA | 于江鹏,et al."Numerical and Experimental Study on the Duration of Nozzle Starting of the Reflected High-Enthalpy Shock Tunnel".APPLIED SCIENCES-BASEL 12.6(2022):16. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Jp2022FA489_2022_Num(6583KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
Lanfanshu学术 |
Lanfanshu学术中相似的文章 |
[于江鹏]的文章 |
[李进平]的文章 |
[汪球]的文章 |
百度学术 |
百度学术中相似的文章 |
[于江鹏]的文章 |
[李进平]的文章 |
[汪球]的文章 |
必应学术 |
必应学术中相似的文章 |
[于江鹏]的文章 |
[李进平]的文章 |
[汪球]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论