Thermocapillary Convection in Floating Zones

doi:10.1115/1.2820798

IMECH-IR > 力学所知识产出(1956-2008)

	Thermocapillary Convection in Floating Zones
	Hu WR(胡文瑞); Tang ZM(唐泽眉); Li K(李凯); Hu, WR (reprint author), Chinese Acad Sci, Inst Mech, 15 4th Round Rd N W, Beijing 100080, Peoples R China.
发表期刊	Applied Mechanics Reviews
	2008
卷号	61 期号:1 页码:010803-1(15pages）
ISSN	0003-6900
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.; 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.
DOI	10.1115/1.2820798
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000256451500003
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
WOS研究方向	Mechanics
WOS类目	Mechanics
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/17923
专题	力学所知识产出(1956-2008)
通讯作者	Hu, WR (reprint author), Chinese Acad Sci, Inst Mech, 15 4th Round Rd N W, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Hu WR,Tang ZM,Li K,et al. Thermocapillary Convection in Floating Zones[J]. Applied Mechanics Reviews,2008,61,1,:010803-1(15pages）.
APA	胡文瑞,唐泽眉,李凯,&Hu, WR .(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）.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
AMR010803.pdf（1809KB）			开放获取	使用许可	浏览下载