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 |
URL | 查看原文 |
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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