Aerodynamic optimization of hypersonic blunted waveriders based on symbolic regression
文献类型：期刊论文
| 作者 | Guo SQ(郭帅旗) ; Liu W(刘文); Zhang CA(张陈安); Liu Y(刘洋); Wang FM(王发民)
|
| 刊名 | AEROSPACE SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2024 |
| 卷号 | 144页码:18 |
| ISSN号 | 1270-9638 |
| 关键词 | Hypersonic waverider Aerodynamic model Symbolic regression Bluntness effect |
| DOI | 10.1016/j.ast.2023.108801 |
| 通讯作者 | Liu, Wen(lw@imech.ac.cn) |
| 英文摘要 | The previous waverider optimization was mainly focused on the original configuration with sharp leading edge. In actual application, the leading edge must be blunted for hypersonic flight, which can change the aerodynamic performance significantly. Thus, the optimum waverider with sharp leading edge doesn't mean that it's still optimum after bluntness. To solve the problem, this paper first investigates the influence mechanism of leading edge bluntness on the aerodynamic performance of the waveriders in detail. And the novel methodology of symbolic regression is employed to establish an analytical pressure increment model for the original waverider caused by the bluntness effects. Then an efficient aerodynamic model for the blunted waverider is constructed by combining traditional approximate methods and the pressure increment model, which is further incorporated into the Genetic Algorithm optimization framework. Results show that the resulting blunted optimized waveriders have distinctly different shapes and better aerodynamic performance compared to previous optimization that considers only sharp leading edge. And as the bluntness radius or the design lift increases, the improvement of lift-to-drag ratio (L/D) turns larger. Finally, when the center of pressure is constrained during the optimization, the blunted optimized waverider exhibits both better trim characteristic and higher L/D. |
| 分类号 | 一类 |
| WOS关键词 | BOUNDARY-LAYER DISPLACEMENT ; LEADING-EDGE BLUNTNESS ; DESIGN ; FLOW ; CONFIGURATIONS ; VEHICLES ; ANALOGY |
| 资助项目 | National Natural Science Foundation of China[11902324] ; Strategic Priority Research Program (A) of Chinese Academy of Science[XDA17030000] ; Youth Innovation Promotion Association CAS[2023023] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001137568700001 |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program (A) of Chinese Academy of Science ; Youth Innovation Promotion Association CAS |
| 其他责任者 | Liu, Wen |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94000]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo SQ,Liu W,Zhang CA,et al. Aerodynamic optimization of hypersonic blunted waveriders based on symbolic regression[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2024,144:18. |
| APA | 郭帅旗,刘文,张陈安,刘洋,&王发民.(2024).Aerodynamic optimization of hypersonic blunted waveriders based on symbolic regression.AEROSPACE SCIENCE AND TECHNOLOGY,144,18. |
| MLA | 郭帅旗,et al."Aerodynamic optimization of hypersonic blunted waveriders based on symbolic regression".AEROSPACE SCIENCE AND TECHNOLOGY 144(2024):18. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
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。