| Revisit of the oblique-breakdown regime in supersonic boundary layers and mechanism of the extra amplification of streak modes | |
| Song RJ(宋润杰)1; Dong M(董明)1,2; Zhao, Lei3 | |
| Corresponding Author | Dong, Ming([email protected]) ; Zhao, Lei([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
 |
| 2022-10-01 | |
| Volume | 34Issue:10Pages:13 |
| ISSN | 1070-6631 |
| Abstract | In the low-Mach-number supersonic boundary layers, the oblique-breakdown regime may be the most efficient route to trigger the laminar-turbulent transition, because the most unstable Mack first mode always appears as an oblique wave. In this paper, we revisit this issue by use of the nonlinear parabolized stability equation (NPSE) approach and particularly focus on the extra amplification of the streak mode generated by the direct interaction of the introduced oblique modes. This mechanism is then well explained based on the weakly nonlinear analysis, and its predictions on the evolution of the streak mode and the two-dimensional traveling-wave mode are quantitatively confirmed by the NPSE calculations. Additionally, the important role of the streak mode, leading to the secondary instability, on triggering the transition onset is identified. Published under an exclusive license by AIP Publishing. |
| DOI | 10.1063/5.0117622 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000875616100006 |
| WOS Keyword | DIRECT NUMERICAL-SIMULATION ; NONLINEAR EVOLUTION ; INSTABILITY ; TRANSITION ; WAVES ; STABILITY |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Science Foundation of China[12002235] ; National Science Foundation of China[U20B2003] ; Strategic Priority Research Program, CAS[XDB22040104] |
| Funding Organization | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; National Science Foundation of China ; Strategic Priority Research Program, CAS |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Dong, Ming ; Zhao, Lei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90661 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Peking Univ, Sino Russian Math Ctr, Beijing 100871, Peoples R China; 3.Tianjin Univ, Dept Mech, Tianjin 300072, Peoples R China |
| Recommended Citation GB/T 7714 | Song RJ,Dong M,Zhao, Lei. Revisit of the oblique-breakdown regime in supersonic boundary layers and mechanism of the extra amplification of streak modes[J]. PHYSICS OF FLUIDS,2022,34,10,:13.Rp_Au:Dong, Ming, Zhao, Lei |
| APA | 宋润杰,董明,&Zhao, Lei.(2022).Revisit of the oblique-breakdown regime in supersonic boundary layers and mechanism of the extra amplification of streak modes.PHYSICS OF FLUIDS,34(10),13. |
| MLA | 宋润杰,et al."Revisit of the oblique-breakdown regime in supersonic boundary layers and mechanism of the extra amplification of streak modes".PHYSICS OF FLUIDS 34.10(2022):13. |
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| Jp2022FA131_2022_Rev（3075KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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