Concept of non-ablative thermal protection system for hypersonic vehicles

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Concept of non-ablative thermal protection system for hypersonic vehicles
	Jiang ZL(姜宗林); Liu YF(刘云峰)
	2013
会议名称	17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
会议日期	APR 11-14, 2011
通讯作者邮箱	yfliu.lhd@gmail.com; zljiang@imech.ac.cn
会议地点	San Francisco, CA
卷号	51
期号	3
页码	584-590
通讯作者	Jiang, ZL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temperature Gas Dynam, Beijing 100190, Peoples R China.
中文摘要	In order to reduce the shock-wave drag and aerodynamic heating of hypersonic vehicles effectively a new concept of non-ablative thermal protection system was proposed based on the idea of flowfield reconstruction. In this non-ablative thermal protection system a spike-blunt body structure and lateral jets are combined together to realize the flowfield modification. The spike transforms the bow shock into a conical shock, and the lateral jets increase the angle of conical shock wave and keep it away from the blunt body to avoid severe shock/shock interactions. Flow visualizations and pressure measurements were conducted in a hypersonic wind tunnel at Mach number 6 to demonstrate this concept. Numerical simulations were also carried out. Both experimental and numerical results demonstrate that the non-ablative thermal protection system works well for shock-wave drag reduction and thermal protection. The peak pressure at the reattachment region is reduced by 65% even under 4 deg attack angle by the lateral jet. Experimental data also show that the working pressure of lateral jets is much lower than that of forward-facing jets at the stagnation point. All the results show that the engineering application of non-ablative thermal protection system appears to be quite promising.
收录类别	CPCI-S ; EI
产权排序	[Liu, Yunfeng; Jiang, Zonglin] Chinese Acad Sci, Inst Mech, State Key Lab High Temperature Gas Dynam, Beijing 100190, Peoples R China
会议网址	http://dx.doi.org/10.2514/1.J051875
会议录	AIAA JOURNAL
会议录出版者	AMER INST AERONAUT ASTRONAUT
学科主题	Engineering ; Aerospace
语种	英语
ISSN号	0001-1452
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47565]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Jiang ZL,Liu YF. Concept of non-ablative thermal protection system for hypersonic vehicles[C]. 见:17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference. San Francisco, CA. APR 11-14, 2011.http://dx.doi.org/10.2514/1.J051875.