| Effects of Shock Impingement on Aerothermal and Aerodynamic Performance for High-pressure Capturing Wings | |
Li GL(李广利) ; Cui K(崔凯); Xiao Y(肖尧); Xu YZ(徐应洲)
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| Source Publication | 21st AIAA International Space Planes and Hypersonics Technologies Conference, Hypersonics 2017 |
| 2017 | |
| Conference Name | 21st AIAA International Space Planes and Hypersonics Technologies Conference |
| Conference Date | 6-9 March 2017 |
| Conference Place | Xiamen, China |
| Abstract | The high-pressure capturing wing (HCW) is a novel device that can improve the aerodynamic performance for large volume high-speed aircrafts. In hypersonic flows, the sharp leading edge of HCW must be blunted because of the severe aerothermal load. The oblique shock induced by body intersects to the bow shock induced by HCW. This paper proposes three cases based on the shock interaction location and studies the corresponding aerodynamic and aerothermal performance by numerical simulation under Mach 6 and zero angle of attack. The results show that the maximal heat flux and drag coefficient of HCW is determined by the interaction location. When the shock impinges on the inside of HCW, the shock boundary layer interaction occurs which lead to the increase of local heat flux on the lower surface of HCW. However, the maximal heat flux is almost the same with the freestream stagnation-point heat flux. The local extreme heat flux in the lower surface of HCW is about 20 percentage of the freestream stagnation-point heat flux. The drag coefficient is almost the same with freestream drag coefficient. When the shock impinges on the HCW leading edge, the type IV interference appears which could cause high pressure and heat flux on the surface. The non-dimensional maximal heat flux is about 3.5 and the maximal drag coefficient is about 1.8 in this case. When the oblique shock impinges on the outside of HCW, the non-dimensional maximal heat flux is about 1.5 and the drag coefficient is about 2.7. 漏 2017, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved. |
| Keyword | Aerodynamics Angle Of Attack Angle Of Attack Indicators Boundary Layers Drag Drag Coefficient High Pressure Effects Hypersonic Aerodynamics Hypersonic Flow Spacecraft |
| ISBN | 978-1-62410-463-3 |
| URL | 查看原文 |
| Indexed By | EI |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/72185 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1. LHD of Institute of Mechanics, Chinese Academy of Sciences, Beijing 2.190, China (2) School of Engineering Science, University of Chinese Academy of Sciences, Beijing 3.100049, China |
| Recommended Citation GB/T 7714 | Li GL,Cui K,Xiao Y,et al. Effects of Shock Impingement on Aerothermal and Aerodynamic Performance for High-pressure Capturing Wings[C]21st AIAA International Space Planes and Hypersonics Technologies Conference, Hypersonics 2017,2017. |
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| File Name/Size | DocType | Version | Access | License | ||
| Cp-2017-028.pdf（664KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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