Interface evolution induced by two successive shocks under diverse reshock conditions
文献类型：期刊论文
| 作者 | Cao, Qing; Chen, Chenren; Wang, He; Zhai, Zhigang; Luo XS(罗喜胜) |
| 刊名 | JOURNAL OF FLUID MECHANICS
 |
| 出版日期 | 2024-11 |
| 卷号 | 999页码:A31 |
| 关键词 | shock waves |
| ISSN号 | 0022-1120 |
| DOI | 10.1017/jfm.2024.957 |
| 英文摘要 | The effects of reshock conditions, including the interface evolution state before reshock and the second shock intensity, on interface instability induced by two successive shocks propagating in the same direction are investigated via shock-tube experiments. It is observed that the reshock promotes the interface instability, and the post-reshock perturbation evolution relates to both the pre-reshock interface evolution state and second shock intensity. For the linear evolution of the twice-shocked interface, existing models perform poorly when either the pre-reshock interface shape effect or the secondary compression effect is pronounced, as current reduction factors fail to accurately describe these effects. Besides, the reshock-induced linear amplitude growth rate shows a non-monotonic dependence on the scaled pre-reshock amplitude, primarily due to the shape effect of the pre-reshock interface. For the post-reshock nonlinear evolution, the model proposed by Zhang & Guo (J. Fluid Mech., vol. 786, 2016, pp. 47-61) offers reasonable predictions when the second shock is weak. However, when the second shock is moderately strong, the model overestimates the bubble growth and underestimates the spike evolution under the influence of the significant secondary compression effect. Furthermore, empirical linear and nonlinear models capable of describing the dependence of the post-reshock evolution on reshock conditions are proposed based on the present experimental results and existing models. |
| 分类号 | 一类/力学重要期刊 |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001353603600001 |
| 资助机构 | National Natural Science Foundation of China {12102425, 12472228, 12372281, 91952205, 12388101] ; Youth Innovation Promotion Association CAS ; Young Elite Scientists Sponsorship Program by CAST {2023QNRC001] ; Fundamental Research Funds for the Central Universities |
| 其他责任者 | Wang H ; Luo XS |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/97175]  |
| 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.【Luo, Xisheng】 Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.【Cao, Qing & Chen, Chenren & Wang, He & Zhai, Zhigang & Luo, Xisheng】 Univ Sci & Technol China, Dept Modern Mech, Adv Prop Lab, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Qing,Chen, Chenren,Wang, He,et al. Interface evolution induced by two successive shocks under diverse reshock conditions[J]. JOURNAL OF FLUID MECHANICS,2024,999:A31. |
| APA | Cao, Qing,Chen, Chenren,Wang, He,Zhai, Zhigang,&罗喜胜.(2024).Interface evolution induced by two successive shocks under diverse reshock conditions.JOURNAL OF FLUID MECHANICS,999,A31. |
| MLA | Cao, Qing,et al."Interface evolution induced by two successive shocks under diverse reshock conditions".JOURNAL OF FLUID MECHANICS 999(2024):A31. |
入库方式： OAI收割
来源：力学研究所
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