Thermocapillary Convection in Floating Zones
文献类型：期刊论文
| 作者 | Hu WR(胡文瑞) ; Tang ZM(唐泽眉); Li K(李凯)
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| 刊名 | Applied Mechanics Reviews
 |
| 出版日期 | 2008 |
| 卷号 | 61期号:1页码:010803-1(15pages） |
| 通讯作者邮箱 | wrhu@imech.ac.cn |
| ISSN号 | 0003-6900 |
| 通讯作者 | Hu, WR (reprint author), Chinese Acad Sci, Inst Mech, 15 4th Round Rd N W, Beijing 100080, Peoples R China. |
| 合作状况 | 其它 |
| 中文摘要 | This paper provides an overview of ongoing studies in the area of thermocapillary convection driven by a surface tension gradient parallel to the free surface in a floating zone. Here, research interests are focused around the onset of oscillatory thermocapillary convection, also known as the transition from quasisteady convection to oscillatory convection. The onset of oscillation depends on a set of critical parameters, and the margin relationship can be represented by a complex function of the critical parameters. The experimental results indicate that the velocity deviation of an oscillatory flow has the same order of magnitude as that of an average flow, and the deviations of other quantities, such as temperature and free surface radii fluctuations, are much smaller when compared with their normal counterparts. Therefore, the onset of oscillation should be a result of the dynamic process in a fluid, and the problem is a strongly nonlinear one. In the past few decades, several theoretical models have been introduced to tackle the problem using analytical methods, linear instability analysis methods, energy instability methods, and unsteady 3D numerical methods. The last of the above mentioned methods is known to be the most suitable for a thorough analysis of strong nonlinear processes, which generally leads to a better comparison with the experimental results. The transition from oscillatory thermocapillary convection to turbulence falls under the studies of chaotic behavior in a new system, which opens a fascinating new frontier in nonlinear science, a hot research area drawing many recent works. This paper reviews theoretical models and analysis, and also experimental research, on thermocapillary connection in floating zones. It cites 93 references. |
| 英文摘要 | This paper provides an overview of ongoing studies in the area of thermocapillary convection driven by a surface tension gradient parallel to the free surface in a floating zone. Here, research interests are focused around the onset of oscillatory thermocapillary convection, also known as the transition from quasisteady convection to oscillatory convection. The onset of oscillation depends on a set of critical parameters, and the margin relationship can be represented by a complex function of the critical parameters. The experimental results indicate that the velocity deviation of an oscillatory flow has the same order of magnitude as that of an average flow, and the deviations of other quantities, such as temperature and free surface radii fluctuations, are much smaller when compared with their normal counterparts. Therefore, the onset of oscillation should be a result of the dynamic process in a fluid, and the problem is a strongly nonlinear one. In the past few decades, several theoretical models have been introduced to tackle the problem using analytical methods, linear instability analysis methods, energy instability methods, and unsteady 3D numerical methods. The last of the above mentioned methods is known to be the most suitable for a thorough analysis of strong nonlinear processes, which generally leads to a better comparison with the experimental results. The transition from oscillatory thermocapillary convection to turbulence falls under the studies of chaotic behavior in a new system, which opens a fascinating new frontier in nonlinear science, a hot research area drawing many recent works. This paper reviews theoretical models and analysis, and also experimental research, on thermocapillary connection in floating zones. It cites 93 references. |
| 类目[WOS] | Mechanics |
| 研究领域[WOS] | Mechanics |
| 关键词[WOS] | LIQUID BRIDGE VOLUME ; CRITICAL MARANGONI NUMBER ; CRYSTAL-GROWTH PROCESS ; HALF-ZONE ; PRANDTL-NUMBER ; FREE-SURFACE ; ENERGY-STABILITY ; MOLTEN TIN ; OSCILLATORY CONVECTION ; INSTABILITY MECHANISMS |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000256451500003 |
| 公开日期 | 2009-07-06 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/17923]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Hu WR,Tang ZM,Li K. Thermocapillary Convection in Floating Zones[J]. Applied Mechanics Reviews,2008,61(1):010803-1(15pages）. |
| APA | 胡文瑞,唐泽眉,&李凯.(2008).Thermocapillary Convection in Floating Zones.Applied Mechanics Reviews,61(1),010803-1(15pages）. |
| MLA | 胡文瑞,et al."Thermocapillary Convection in Floating Zones".Applied Mechanics Reviews 61.1(2008):010803-1(15pages）. |
入库方式： OAI收割
来源：力学研究所
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