Receptivity of Mack modes to localized unsteady blowing and suction in a chemical non-equilibrium hypersonic boundary layer
文献类型：期刊论文
| 作者 | Yuan, Qingjiang; Song, Runjie; Dong, Ming; Yuan QJ(袁庆江)
|
| 刊名 | ACTA MECHANICA SINICA
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 40期号:7页码:18 |
| 关键词 | Chemical non-equilibrium flow Boundary-layer instability Hypersonic Receptivity Transition to turbulence |
| ISSN号 | 0567-7718 |
| DOI | 10.1007/s10409-023-23485-x |
| 通讯作者 | Song, Runjie(songrunjie@imech.ac.cn) ; Dong, Ming(dongming@imech.ac.cn) |
| 英文摘要 | This paper studies the local receptivity of the Mack-mode instability to localized unsteady blowing and suction (UBS) in a chemical non-equilibrium (CNE) hypersonic boundary layer. The five-species CNE model is employed, and the receptivity efficiency is formulated by use of the residual theorem. Compared with the results for the calorically perfect gas (CPG) model, we find that the real-gas effect enhances the receptivity efficiency remarkably in the majority of the second-mode frequency band, and the enhancement is mainly attributed to the modification of the base flow due to the CNE effect, which is akin to the cold-wall effect in hypersonic boundary layers. Combined with the destabilizing role of the CNE effect on the Mack second mode, it is concluded that the CNE effect would lead to a greater linearly accumulated perturbation amplitude, implying premature of transition to turbulence in a high-enthalpy hypersonic boundary layer subject to localized perturbations. |
| WOS关键词 | TRANSITION ; STABILITY ; FLOW |
| 资助项目 | National Science Foundation of China[U20B2003] ; National Science Foundation of China[11988102] ; National Science Foundation of China[12302292] |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:001235306500002 |
| 资助机构 | National Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95510]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Song, Runjie; Dong, Ming |
| 作者单位 | Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Qingjiang,Song, Runjie,Dong, Ming,et al. Receptivity of Mack modes to localized unsteady blowing and suction in a chemical non-equilibrium hypersonic boundary layer[J]. ACTA MECHANICA SINICA,2024,40(7):18. |
| APA | Yuan, Qingjiang,Song, Runjie,Dong, Ming,&袁庆江.(2024).Receptivity of Mack modes to localized unsteady blowing and suction in a chemical non-equilibrium hypersonic boundary layer.ACTA MECHANICA SINICA,40(7),18. |
| MLA | Yuan, Qingjiang,et al."Receptivity of Mack modes to localized unsteady blowing and suction in a chemical non-equilibrium hypersonic boundary layer".ACTA MECHANICA SINICA 40.7(2024):18. |
入库方式： OAI收割
来源：力学研究所
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