Shock wave and turbulent boundary layer interaction in a double compression ramp
文献类型：期刊论文
| 作者 | Tong FL(童福林)2,3,4; Duan JY(段俊亦)1,4 ; Li XL(李新亮)1,4
|
| 刊名 | COMPUTERS & FLUIDS
 |
| 出版日期 | 2021-10-30 |
| 卷号 | 229页码:15 |
| 关键词 | Shock wave Turbulent boundary layer Double compression ramp Direct numerical simulation |
| ISSN号 | 0045-7930 |
| DOI | 10.1016/j.compfluid.2021.105087 |
| 通讯作者 | Li, Xinliang(lixl@imech.ac.cn) |
| 英文摘要 | Direct numerical simulations of shock wave and supersonic turbulent boundary layer interaction in a double compression ramp with fixed ramp angles of 12 degrees and 24 degrees at Mach 2.9 are conducted. The characteristics of the shock interactions are investigated for four different length between the two ramp kinks, corresponding to L-c = 0.9 delta(ref), 1.8 delta(ref), 2.7 delta(ref), and 3.6 delta(ref) (delta(ref) being the upstream turbulent boundary layer thickness). The influence of increasing L-c on flow structures, unsteadiness, Reynolds stress, turbulence kinetic energy, and Reynolds stress anisotropy tensor is assessed. The size of the separation region is significantly decreased and reattached flow appears between the two ramp kinks. Streamwise vorticity contours and streamline curvature show the decreased spanwise width and increased spanwise coherency of Gortler-like vortices. Analysis of fluctuating wall pressure indicates that the low-frequency unsteadiness is strongly suppressed in the interaction region. Profiles of Reynolds stress components and turbulence kinetic energy exhibit different turbulence evolution across the interaction, leading to substantial differences observed in the anisotropy invariant map. It is found that the near wall region is characterized by decreased anisotropy, becoming closer to the axisymmetric compression state, while a significant increase of turbulence is identified in the outer region, following the axisymmetric expansion limit. Moreover, downstream of the interaction, turbulence in the near-wall region experiences a faster recovery and the influence of L-c is found to be marginal. The main effect of L-c is observed in the outer region, an increase of L-c resulting in a monotonic decay of turbulence intensities and an inward movement of turbulent structures. |
| 分类号 | 二类 |
| WOS关键词 | DIRECT NUMERICAL-SIMULATION ; LARGE-EDDY SIMULATION |
| 资助项目 | NSFC[11972356] ; NSFC[91852203] ; National Key Research and Development Program of China[2019YFA0405300] |
| WOS研究方向 | Computer Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000697029200004 |
| 资助机构 | NSFC ; National Key Research and Development Program of China |
| 其他责任者 | Li, Xinliang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/87435]  |
| 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 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.China Aerodynam Res & Dev Ctr, Computat Aerodynam Inst, Mianyang 621000, Sichuan, Peoples R China; 3.China Aerodynam Res & Dev Ctr, State Key Lab Aerodynam, Mianyang 621000, Sichuan, Peoples R China; 4.Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Tong FL,Duan JY,Li XL. Shock wave and turbulent boundary layer interaction in a double compression ramp[J]. COMPUTERS & FLUIDS,2021,229:15. |
| APA | 童福林,段俊亦,&李新亮.(2021).Shock wave and turbulent boundary layer interaction in a double compression ramp.COMPUTERS & FLUIDS,229,15. |
| MLA | 童福林,et al."Shock wave and turbulent boundary layer interaction in a double compression ramp".COMPUTERS & FLUIDS 229(2021):15. |
入库方式： OAI收割
来源：力学研究所
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