Effects of disturbed transmitted shock and interface coupling on heavy gas layer evolution
文献类型：期刊论文
| 作者 | Chen, Chenren2; Li, Jiaxuan2; Zhai, Zhigang2; Luo, Xisheng1,2 |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 36期号:8页码:11 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0215839 |
| 通讯作者 | Zhai, Zhigang(sanjing@ustc.edu.cn) |
| 英文摘要 | Development of a heavy gas layer with an upstream single-mode interface and a downstream planar interface accelerated by a shock wave is investigated. By considering the amplitude variation of the transmitted shock and interface coupling, a modified model is established, which provides good predictions on the linear growth rates of the perturbations on both interfaces. Through the model, the perturbation growth of the downstream interface can be frozen by choosing a suitable layer width. In such a shocked layer, interface coupling has an ignorable effect on the nonlinear evolution of the upstream interface but significantly changes the nonlinear evolution of the downstream interface. A new dimensionless approach is proposed to scale the nonlinear growth of the middle spike on the downstream interface. Finally, through modal analysis, we find that the pressure perturbations rather than interface coupling result in the formation of the small spike on the bubble head of the downstream interface. |
| WOS关键词 | RICHTMYER-MESHKOV INSTABILITIES ; RAYLEIGH-TAYLOR ; NUMERICAL SIMULATIONS ; GROWTH ; DRIVEN |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001284522400025 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96526]  |
| 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 | Zhai, Zhigang |
| 作者单位 | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Univ Sci & Technol China, Dept Modern Mech, Adv Prop Lab, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Chenren,Li, Jiaxuan,Zhai, Zhigang,et al. Effects of disturbed transmitted shock and interface coupling on heavy gas layer evolution[J]. PHYSICS OF FLUIDS,2024,36(8):11. |
| APA | Chen, Chenren,Li, Jiaxuan,Zhai, Zhigang,&Luo, Xisheng.(2024).Effects of disturbed transmitted shock and interface coupling on heavy gas layer evolution.PHYSICS OF FLUIDS,36(8),11. |
| MLA | Chen, Chenren,et al."Effects of disturbed transmitted shock and interface coupling on heavy gas layer evolution".PHYSICS OF FLUIDS 36.8(2024):11. |
入库方式： OAI收割
来源：力学研究所
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