Influence of Aspect Ratio on the Onset of Thermocapillary Oscillatory Convection in a Floating Half Zone of Large Prandtl Number Fluid

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	Influence of Aspect Ratio on the Onset of Thermocapillary Oscillatory Convection in a Floating Half Zone of Large Prandtl Number Fluid
	Tang ZM(唐泽眉); Hu WR(胡文瑞)
刊名	Chinese Physics Letters
	2003
卷号	20 期号:4 页码:526-528
ISSN号	0256-307X
通讯作者	Tang, ZM (reprint author), Chinese Acad Sci, Natl Micrograv Lab, Beijing 100080, Peoples R China.
中文摘要	The onset of oscillatory thermocapillary convection in a floating half zone of 10 cst silicon oil (Prandtl number 105.6) is studied by the three-dimensional and unsteady numerical simulation in microgravity environment (g=10~{-4}_{gearth}). The results show that the steady and axi-symmetric convection, for a fixed liquid bridge volume ratio V_l/V_0=1, transits directly to the oscillatory convection if geometrical aspect ratio A is larger than the critical value A_c=1.25, but transits to the oscillatory convection via the steady and non-axisymmetric flow if A is smaller than the critical value A_c. The result means that there are two bifurcation transitions in a liquid bridge of the large Prandtl number fluid with a smaller aspect ratio A.
学科主题	力学
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	CYLINDRICAL LIQUID BRIDGES ; INSTABILITY ; FLOW
收录类别	SCI
语种	英语
WOS记录号	WOS:000182542500025
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/15507]
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	Tang ZM,Hu WR. Influence of Aspect Ratio on the Onset of Thermocapillary Oscillatory Convection in a Floating Half Zone of Large Prandtl Number Fluid[J]. Chinese Physics Letters,2003,20(4):526-528.
APA	唐泽眉,&胡文瑞.(2003).Influence of Aspect Ratio on the Onset of Thermocapillary Oscillatory Convection in a Floating Half Zone of Large Prandtl Number Fluid.Chinese Physics Letters,20(4),526-528.
MLA	唐泽眉,et al."Influence of Aspect Ratio on the Onset of Thermocapillary Oscillatory Convection in a Floating Half Zone of Large Prandtl Number Fluid".Chinese Physics Letters 20.4(2003):526-528.