Angle of Attack Effects on Boundary Layer Transition over a Flared Cone-Swept Fin Configuration
文献类型：期刊论文
| 作者 | Meng, Qingdong2; Lei, Juanmian2; Wu, Song1; Yuan, Chaokai1; Yu, Jiang1; Zhou, Ling2 |
| 刊名 | AEROSPACE
 |
| 出版日期 | 2025-09-12 |
| 卷号 | 12期号:9页码:24 |
| 关键词 | hypersonic boundary layer transition shock-boundary layer interaction angle of attack second-mode instabilities |
| DOI | 10.3390/aerospace12090824 |
| 通讯作者 | Zhou, Ling(lingzhou@bit.edu.cn) |
| 英文摘要 | In our previous study, the transition behavior of a flared cone-swept fin configuration was investigated under an angle of attack (AoA) of 0 degrees. To further explore the role of AoA in complex three-dimensional geometries with strong fin-body interactions, wind tunnel experiments were conducted at Ma = 9.3, Re = 1.36 x 107/m, with AoA ranging from -6 degrees to 6 degrees. Global surface temperature distributions were obtained using temperature-sensitive paint (TSP), while localized heat flux and pressure fluctuations were captured using thin-film thermocouples and high-frequency pressure sensors. The results show that varying AoA shifts the location of high heat flux between the upper and lower surfaces of the flared cone and induces a switch from streamwise to separation vortices. The windward side exhibits stronger disturbance responses than the leeward side. The junction region between the flared cone and the near-horizontal surface is highly sensitive to AoA variations, consistently exhibiting pronounced second-mode instabilities. These findings provide experimental support for understanding transition mechanisms under the combined effects of shock/boundary layer interaction (SBLI), crossflow, and adverse pressure gradients, with implications for transition prediction and thermal protection system design. |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001579454400001 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/104074]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Zhou, Ling |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Qingdong,Lei, Juanmian,Wu, Song,et al. Angle of Attack Effects on Boundary Layer Transition over a Flared Cone-Swept Fin Configuration[J]. AEROSPACE,2025,12(9):24. |
| APA | Meng, Qingdong,Lei, Juanmian,Wu, Song,Yuan, Chaokai,Yu, Jiang,&Zhou, Ling.(2025).Angle of Attack Effects on Boundary Layer Transition over a Flared Cone-Swept Fin Configuration.AEROSPACE,12(9),24. |
| MLA | Meng, Qingdong,et al."Angle of Attack Effects on Boundary Layer Transition over a Flared Cone-Swept Fin Configuration".AEROSPACE 12.9(2025):24. |
入库方式： OAI收割
来源：力学研究所
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