Linear instability analysis of thermocapillary convection in a bilayer system

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	Linear instability analysis of thermocapillary convection in a bilayer system
	Ding ZJ(丁子敬); Liu QS(刘秋生); Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.
发表期刊	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
	2013-07-01
卷号	62 期号:1 页码:63-72
ISSN	0017-9310
摘要	The linear instability analysis of thermocapillary convection in a bilayer system consisting of silicon oil 10cS and fluorinert FC70 liquids was discussed in this paper. The bilayer system was bound below by a rigid plate and above by a free surface with a passive gas. The two immiscible liquids were separated by an interface. A constant horizontal temperature gradient was imposed along the interfaces. Two typical cases were studied: (i) streamwise homogeneous disturbances (the streamwise disturbance wave number α = 0); (ii) spanwise homogeneous disturbances (the spanwise disturbance wave number β = 0). When α = 0, it was found that convection in the two layers may occur in the form of stationary mode or oscillatory mode. The oscillatory mode takes the form of traveling wave, which propagates in either spanwise direction. When β = 0, convection in the two layers occurs in the form of oscillatory mode, which takes the form of traveling wave propagating in the same direction as base flow. The three dimensional analysis suggested that disturbance in the spanwise direction was the major cause of destabilization in the system. The influences of Biot number Bi and the depth ratio h on the unstable modes in the bilayer system were discussed.
关键词	Two-layer Flow System Linear Stability Analysis Thermocapillary Convection
学科领域	流动的稳定性
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000319085500008
项目资助者	National Natural Science Foundation of China [50890182, 11072249]
课题组名称	NML流动稳定性与复杂流动
论文分区	一类
引用统计	被引频次：3[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/311007/47324
专题	微重力重点实验室
通讯作者	Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Ding ZJ,Liu QS,Liu, QS . Linear instability analysis of thermocapillary convection in a bilayer system[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2013,62,1,:63-72.
APA	Ding ZJ,Liu QS,&Liu, QS .(2013).Linear instability analysis of thermocapillary convection in a bilayer system.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,62(1),63-72.
MLA	Ding ZJ,et al."Linear instability analysis of thermocapillary convection in a bilayer system".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 62.1(2013):63-72.

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