Direct numerical simulation of shock-wave/boundary layer interaction controlled with convergent-divergent riblets
文献类型：期刊论文
| 作者 | Guo, Tongbiao3; Fang, Jian2; Zhang, Ji1,3; Li, Xinliang1,3 ; Li XL(李新亮)
|
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 34期号:8页码:18 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0102261 |
| 通讯作者 | Li, Xinliang(lixl@imech.ac.cn) |
| 英文摘要 | In this paper, a section of convergent-divergent (C-D) riblets is applied upstream of a compression ramp in a supersonic turbulent boundary layer in a Mach 2.9 flow with a Reynolds number of R e (theta) = 2240. Direct numerical simulations are undertaken to examine the impact of C-D riblets on the shock wave/boundary layer interaction and the feasibility of using them to mitigate flow separation. Over the riblet section, a large-scale secondary roll mode is produced by C-D riblets with the downwelling motion occurring around the diverging region and upwelling motion near the converging region. This consequently leads to a spanwise heterogeneity in mean quantities and turbulent structures over the riblet section and also in the interaction zone. Compared with the baseline case, the area of the separation zone for the riblet case experiences a dramatic local reduction of 92% in the diverging region, owing to the downwelling motion that injects the high-momentum fluid toward the wall and the near-wall spanwise velocity that transports the low-momentum fluid away. The enhanced upwelling motion around the converging region induced by C-D riblets, on the one hand, contributes to the decrease of the near-wall momentum and subsequently the increase of the local separation area. On the other hand, the upwelling motion effectively reduces the incoming Mach number upstream of the compression corner. This appears to reduce the strength of the separation shock, leading to a more gradual compression of the incoming flow that helps ease the enlargement of the separation area nearby. Overall, the area of the mean flow separation is reduced by 56%, indicating an effective flow separation control by the C-D riblets. Published under an exclusive license by AIP Publishing. |
| WOS关键词 | TURBULENT-BOUNDARY-LAYER ; VORTEX GENERATORS ; FLOW |
| 资助项目 | National Key Research and Development Program of China[2019YFA0405300] ; NSFC Project[91852203] ; NSFC Project[12072349] ; Innovation Fund of Shanghai Aerospace Science and Technology[SAST2021-001] ; UK Engineering and Physical Sciences Research Council (EPSRC) through the Computational Science Centre for Research Communities ; UK Turbulence Consortium[EP/R029326/1] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000835653900011 |
| 资助机构 | National Key Research and Development Program of China ; NSFC Project ; Innovation Fund of Shanghai Aerospace Science and Technology ; UK Engineering and Physical Sciences Research Council (EPSRC) through the Computational Science Centre for Research Communities ; UK Turbulence Consortium |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/89858]  |
| 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 | Li, Xinliang |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.STFC Daresbury Lab, Sci Comp Dept, Warrington WA4 4AD, England 3.Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Tongbiao,Fang, Jian,Zhang, Ji,et al. Direct numerical simulation of shock-wave/boundary layer interaction controlled with convergent-divergent riblets[J]. PHYSICS OF FLUIDS,2022,34(8):18. |
| APA | Guo, Tongbiao,Fang, Jian,Zhang, Ji,Li, Xinliang,&李新亮.(2022).Direct numerical simulation of shock-wave/boundary layer interaction controlled with convergent-divergent riblets.PHYSICS OF FLUIDS,34(8),18. |
| MLA | Guo, Tongbiao,et al."Direct numerical simulation of shock-wave/boundary layer interaction controlled with convergent-divergent riblets".PHYSICS OF FLUIDS 34.8(2022):18. |
入库方式： OAI收割
来源：力学研究所
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