Experimental Investigations on Interaction of Two Drops by Thermocapillary-Buoyancy Migration

doi:10.1016/j.ijheatmasstransfer.2005.12.019

IMECH-IR > 力学所知识产出(1956-2008)

	Experimental Investigations on Interaction of Two Drops by Thermocapillary-Buoyancy Migration
	Kang Q(康琦); Hu L(胡良); Huang C; Cui HL(崔海亮); Duan L(段俐); Hu WR(胡文瑞); Kang, Q (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, 15 BeiSiHuanXi Rd, Beijing 100080, Peoples R China.
发表期刊	International Journal of Heat and Mass Transfer
	2006
卷号	49 期号:15 页码:2636-2641
ISSN	0017-9310
摘要	Experiments were performed, in a terrestrial environment, to study the migration and interaction of two drops with different diameters in matrix liquid under temperature gradient field. Pure soybean oil and silicon oil were used as matrix liquid and the drop liquid, respectively. The information on the motions of two drops was recorded by CCD camera system in the experiments to analyze the trajectories and velocities of the drops. Our experiments showed that, upon two drops approaching each other, the influence of the larger drop on the motion of the smaller one became significant. Meanwhile the smaller drop had a little influence on the larger one all the time. The oscillation of migration velocities of both drops was observed as they were approaching. For a short period the smaller drop even moved backward when it became side by side with the larger one during the migration. Although our experimental results on the behavior of two drops are basically consistent with the theoretical predictions, there are also apparent differences. 2006 Elsevier Ltd. All rights reserved. Keywords: Thermocapillary migration; Drop; Interaction; Oscillation 1. Introduction A bubble or drop will move when placed in another fluid with temperature gradient. This motion happens as a consequence of the variation of interfacial tension with temperature. Such a phenomenon is already known as Marangoni migration problem. With the development of microgravity science, bubble dynamics and droplet dynamics became a hot point problem of research because this investigation is very important for basic research as well as for applications in reduced gravity environment, such as space material science, chemical engineering and so on. Young et al. first investigated the thermocapillary migration of
学科领域	力学
DOI	10.1016/j.ijheatmasstransfer.2005.12.019
收录类别	SCI
语种	英语
WOS记录号	WOS:000238245000023
关键词[WOS]	MICROGRAVITY ENVIRONMENT ; THERMAL-GRADIENT ; BUBBLES ; MOTION
WOS研究方向	Thermodynamics ; Engineering ; Mechanics
WOS类目	Thermodynamics ; Engineering, Mechanical ; Mechanics
引用统计	被引频次：12[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/311007/15771
专题	力学所知识产出(1956-2008)
通讯作者	Kang, Q (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, 15 BeiSiHuanXi Rd, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Kang Q,Hu L,Huang C,et al. Experimental Investigations on Interaction of Two Drops by Thermocapillary-Buoyancy Migration[J]. International Journal of Heat and Mass Transfer,2006,49,15,:2636-2641.
APA	康琦.,胡良.,Huang C.,崔海亮.,段俐.,...&Kang, Q .(2006).Experimental Investigations on Interaction of Two Drops by Thermocapillary-Buoyancy Migration.International Journal of Heat and Mass Transfer,49(15),2636-2641.
MLA	康琦,et al."Experimental Investigations on Interaction of Two Drops by Thermocapillary-Buoyancy Migration".International Journal of Heat and Mass Transfer 49.15(2006):2636-2641.

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