Rayleigh-Marangoni-Benard Instability in Two-Layer Fluid System

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	Rayleigh-Marangoni-Benard Instability in Two-Layer Fluid System
	Zhou BH(周炳红); Liu QS(刘秋生); Tang ZM(唐泽眉)
刊名	Acta Mechanica Sinica
	2004
通讯作者邮箱	liu@imech.ac.cn
卷号	24 期号:4 页码:366-373
ISSN号	0567-7718
通讯作者	Zhau, BH (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.
中文摘要	Rayleigh-Marangoni-Benard instability in a system of two-layer fluids is studied numerically. The convective instabilities in the system of Silicon Oil (10cSt) and Fluorinert (FC70) liquids have been analyzed. The critical parameters at onset of convection are presented in a large range of two-layer depth ratios from 0.2 to 5.0. Numerical results show that the instability of the two-layer system depends strongly on its depth ratio. When the depth ratio increases, the instability mode changes from mechanical coupling to thermal coupling. Between these two typical coupling modes, a time-dependent oscillation is detected. Nevertheless, traveling wave states are found in the case of oscillatory instability. The oscillation mode results from the competition between Rayleigh instability and Marangoni effect.
学科主题	力学
类目[WOS]	Engineering, Mechanical ; Mechanics
研究领域[WOS]	Engineering ; Mechanics
关键词[WOS]	THERMOCAPILLARY INSTABILITIES ; CONVECTION ; LAYERS
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000223688000006
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/311007/15698]
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	Zhou BH,Liu QS,Tang ZM. Rayleigh-Marangoni-Benard Instability in Two-Layer Fluid System[J]. Acta Mechanica Sinica,2004,24(4):366-373.
APA	周炳红,刘秋生,&唐泽眉.(2004).Rayleigh-Marangoni-Benard Instability in Two-Layer Fluid System.Acta Mechanica Sinica,24(4),366-373.
MLA	周炳红,et al."Rayleigh-Marangoni-Benard Instability in Two-Layer Fluid System".Acta Mechanica Sinica 24.4(2004):366-373.