Prediction of Transition Locations in Regions of the Minor Axis of Hypersonic Elliptic Cones using the BiGlobal-eN Method
文献类型：期刊论文
| 作者 | Zhao, Lei; Zhou, Wenqiang; Li XL(李新亮) ; Zhang, Shaolong; Zhang, Yongming
|
| 刊名 | ADVANCES IN APPLIED MATHEMATICS AND MECHANICS
 |
| 出版日期 | 2024-01-05 |
| 页码 | 28 |
| 关键词 | BiGlobal stability transition boundary layer hypersonic elliptic cone minor axis. |
| ISSN号 | 2070-0733 |
| DOI | 10.4208/aamm.OA-2022-0183xxx2024 |
| 通讯作者 | Zhang, Yongming(ymzh@tju.edu.cn) |
| 英文摘要 | Two-dimensional global (BiGlobal) stability in the region of the minor axis is investigated in the case of hypersonic elliptic cones with major-minor axis ratios of 2:1 and 3:1 at Mach number 6.0, and the BiGlobal-e(N) method is proposed to predict the transition location of the boundary layer. Matrix-free BiGlobal stability analysis is used to find unstable modes, including the Y-mode and the Z-mode. The growth rates in the streamwise-frequency plane for these modes are obtained. The N(max center dot all )factor is proposed, which represents the maximum amplification factor that all BiGlobal unstable modes can reach. Using a comparison of the N-max center dot all factor with the transition location measured in a wind tunnel experiment for the 2:1 elliptic cone, the transition prediction criterion is determined, i.e., N-tr = 8.6. In the transition position, the amplification factors of several modes reach a level close to 8.6, which implies that none of them has the absolute superiority sufficient to cause the transition itself. Finally, the BiGlobal-e(N) method is employed to predict the transition location in the region of the minor axis of the 3:1 elliptical cone. It is found that a larger major-minor axis ratio leads to stronger instability and an earlier transition. |
| 分类号 | 二类 |
| WOS关键词 | MACH 8 FLOW ; BOUNDARY-LAYER ; SECONDARY INSTABILITY ; CROSS-FLOW |
| 资助项目 | National Key Research and Development Program of China[2016YFA0401200] ; National Natural Science Foundation of China[91952301] ; National Natural Science Foundation of China[11672204] ; National Natural Science Foundation of China[12072230] ; National Natural Science Foundation of China[11732011] |
| WOS研究方向 | Mathematics ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001141858100001 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| 其他责任者 | Zhang, Yongming |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/94100]  |
| 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 | Zhao, Lei,Zhou, Wenqiang,Li XL,et al. Prediction of Transition Locations in Regions of the Minor Axis of Hypersonic Elliptic Cones using the BiGlobal-eN Method[J]. ADVANCES IN APPLIED MATHEMATICS AND MECHANICS,2024:28. |
| APA | Zhao, Lei,Zhou, Wenqiang,李新亮,Zhang, Shaolong,&Zhang, Yongming.(2024).Prediction of Transition Locations in Regions of the Minor Axis of Hypersonic Elliptic Cones using the BiGlobal-eN Method.ADVANCES IN APPLIED MATHEMATICS AND MECHANICS,28. |
| MLA | Zhao, Lei,et al."Prediction of Transition Locations in Regions of the Minor Axis of Hypersonic Elliptic Cones using the BiGlobal-eN Method".ADVANCES IN APPLIED MATHEMATICS AND MECHANICS (2024):28. |
入库方式： OAI收割
来源：力学研究所
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