Evolution of mixing width induced by general Rayleigh-Taylor instability
文献类型：期刊论文
| 作者 | Zhang YS; He ZW ; Gao FJ; Li XL(李新亮); Tian BL
|
| 刊名 | PHYSICAL REVIEW E
 |
| 出版日期 | 2016 |
| 卷号 | 93期号:6页码:63102 |
| 通讯作者邮箱 | tian_baolin@iapcm.ac.cn |
| ISSN号 | 2470-0045 |
| 关键词 | Robotic Fish Capability Optimization The Taguchi Method |
| 通讯作者 | Tian, BL (reprint author), Inst Appl Phys & Computat Math, Key Lab Computat Phys, Beijing 100094, Peoples R China. |
| 产权排序 | [Zhang, You-sheng; He, Zhi-wei; Gao, Fu-jie; Tian, Bao-lin] Inst Appl Phys & Computat Math, Key Lab Computat Phys, Beijing 100094, Peoples R China; [Li, Xin-liang] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| 中文摘要 | Turbulent mixing induced by Rayleigh-Taylor (RT) instability occurs ubiquitously in many natural phenomena and engineering applications. As the simplest and primary descriptor of the mixing process, the evolution of mixing width of the mixing zone plays a notable role in the flows. The flows generally involve complex varying acceleration histories and widely varying density ratios, two dominant factors affecting the evolution of mixing width. However, no satisfactory theory for predicting the evolution has yet been established. Here a theory determining the evolution of mixing width in general RT flows is established to reproduce, first, all of the documented experiments conducted for diverse (i.e., constant, impulsive, oscillating, decreasing, increasing, and complex) acceleration histories and all density ratios. The theory is established in terms of the conservation principle, with special consideration given to the asymmetry of the volume-averaged density fields occurring in actual flows. The results reveal the sensitivity or insensitivity of the evolution of a mixing front of a neighboring light or heavy fluid to the degree of asymmetry and thus explain the distinct evolutions in two experiments with the same configurations. |
| 类目[WOS] | Physics, Fluids & Plasmas ; Physics, Mathematical |
| 分类号 | 一类 |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | Robotic Fish ; Capability Optimization ; The Taguchi Method |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevE.93.063102 |
| 语种 | 英语 |
| WOS记录号 | WOS:000377334300010 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59566]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang YS,He ZW,Gao FJ,et al. Evolution of mixing width induced by general Rayleigh-Taylor instability[J]. PHYSICAL REVIEW E,2016,93(6):63102. |
| APA | Zhang YS,He ZW,Gao FJ,李新亮,&Tian BL.(2016).Evolution of mixing width induced by general Rayleigh-Taylor instability.PHYSICAL REVIEW E,93(6),63102. |
| MLA | Zhang YS,et al."Evolution of mixing width induced by general Rayleigh-Taylor instability".PHYSICAL REVIEW E 93.6(2016):63102. |
入库方式： OAI收割
来源：力学研究所
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