Direct numerical simulation of impinging shock wave and turbulent boundary layer interaction over a wavy-wall | |
Tong FL(童福林)1,2,3; Sun D(孙栋)2,3; Li XL(李新亮)1,4 | |
Source Publication | CHINESE JOURNAL OF AERONAUTICS |
2021-05-01 | |
Volume | 34Issue:5Pages:350-363 |
ISSN | 1000-9361 |
Abstract | The interaction of an impinging oblique shock wave with an angle of 30 degrees and a super-sonic turbulent boundary layer at Ma(infinity)=2.9 and Re-0 = 2400 over a wavy-wall is investigated through direct numerical simulation and compared with the interaction on a flat-plate under the same flow conditions. A sinusoidal wave with amplitude to wavelength ratio of 0.26 moves in the streamwise direction and is uniformly distributed across the spanwise direction. The influences of the wavy-wall on the interaction, including the characterization of the flow field, the skin-friction, pressure and the budget of turbulence kinetic energy, are systematically studied. The region of sep-aration grows slightly and decomposes into four bubbles. Local peaks of skin-friction are observed at the rear part of the interaction region. The low-frequency shock motion can be seen in the wall pressure spectra. Analyses of the turbulence kinetic energy budget indicate that both diffusion and transport significantly increase near the crests, balanced by an amplified dissipation in the near-wall region. Proper orthogonal decomposition analyses show that the most energetic structures are associated with the separated shock and the shear layer over the bubbles. Only the bubbles in the first two troughs are dominated by a low-frequency enlargement or shrinkage. (C) 2021 Chinese Society of Aeronautics and Astronautics. Production and hosting by Elsevier Ltd. |
Keyword | Direct numerical simulation Low-frequency unsteadiness Shock waves Turbulent boundary layer Wavy-wall |
DOI | 10.1016/j.cja.2020.10.016 |
Indexed By | SCI ; EI ; CSCD |
Language | 英语 |
WOS ID | WOS:000642455400004 |
WOS Keyword | UNSTEADINESS ; SEPARATION ; FLOWS |
WOS Research Area | Engineering |
WOS Subject | Engineering, Aerospace |
Funding Project | National Key Research and Development Program of China[2019YFA0405300] ; National Key Research and Development Program of China[2016YFA0401200] ; National Natural Science Foundation of China[11972356] ; National Natural Science Foundation of China[91852203] ; LHD Youth Innovation Fund[LHD2019CX04] ; National Numerical Wind Tunnel Project |
Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China ; LHD Youth Innovation Fund ; National Numerical Wind Tunnel Project |
Classification | 二类/Q1 |
Ranking | 1 |
Contributor | Li, Xinliang |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/86594 |
Collection | 高温气体动力学国家重点实验室 |
Affiliation | 1.Chinese Acad Sci, Inst Mech, LHD, Beijing 100190, Peoples R China; 2.China Aerodynam Res & Dev Ctr, State Key Lab Aerodynam, Mianyang 621000, Sichuan, Peoples R China; 3.China Aerodynam Res & Dev Ctr, Computat Aerodynam Inst, Mianyang 621000, Sichuan, Peoples R China; 4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Tong FL,Sun D,Li XL. Direct numerical simulation of impinging shock wave and turbulent boundary layer interaction over a wavy-wall[J]. CHINESE JOURNAL OF AERONAUTICS,2021,34,5,:350-363. |
APA | Tong FL,Sun D,&Li XL.(2021).Direct numerical simulation of impinging shock wave and turbulent boundary layer interaction over a wavy-wall.CHINESE JOURNAL OF AERONAUTICS,34(5),350-363. |
MLA | Tong FL,et al."Direct numerical simulation of impinging shock wave and turbulent boundary layer interaction over a wavy-wall".CHINESE JOURNAL OF AERONAUTICS 34.5(2021):350-363. |
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