Concept of non-ablative thermal protection system for hypersonic vehicles

	Concept of non-ablative thermal protection system for hypersonic vehicles
	Liu YF(刘云峰); Jiang ZL(姜宗林); Jiang, ZL (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temperature Gas Dynam, Beijing 100190, Peoples R China.
会议录名称	AIAA JOURNAL
	2013
页码	584-590
会议名称	17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
会议日期	APR 11-14, 2011
会议地点	San Francisco, CA
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.
课题组名称	高温气体动力学国家重点实验室
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收录类别	CPCI-S ; EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47565
专题	高温气体动力学国家重点实验室
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.
推荐引用方式 GB/T 7714	Liu YF,Jiang ZL,Jiang, ZL . Concept of non-ablative thermal protection system for hypersonic vehicles[C]AIAA JOURNAL,2013:584-590.

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