Lateral migration of dual droplet trains in a double spiral microchannel

doi:10.1007/s11433-016-0115-1

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	Lateral migration of dual droplet trains in a double spiral microchannel
	Xue CD; Chen XD; Liu C; Hu GQ(胡国庆); Hu, GQ (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing Key Lab Engn Construct & Mechanobiol, Inst Mech, Beijing 100190, Peoples R China.; Hu, GQ (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China.
发表期刊	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2016
卷号	59 期号:7 页码:674711
ISSN	1674-7348
摘要	Microfluidic droplets have emerged as novel platforms for chemical and biological applications. Manipulation of droplets has thus attracted increasing attention. Different from solid particles, deformable droplets cannot be efficiently controlled by inertia-driven approaches. Here, we report a study on the lateral migration of dual droplet trains in a double spiral microchannel at low Reynolds numbers. The dominant driving mechanism is elucidated as wall effect originated from the droplet deformation. Three types of migration modes are observed with varying Reynolds numbers and the size-dependent mode is intensively investigated. We obtain empirical formulas by relating the migration to Reynolds numbers and droplet sizes. The effect of droplet deformability on the migration and the detailed migration behavior along the double spiral channel are discussed. Numerical simulations are also performed and yielded in qualitative agreement with the experiments. This proposed low Re approach based on lateral migration could be a promising alternative to existing inertia-driven approaches especially concerning deformable entities and susceptible bio-particles.
关键词	Microfluidics Droplet Migration Double Spiral Microchannel
DOI	10.1007/s11433-016-0115-1
URL	查看原文
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000384212100005
关键词[WOS]	microfluidics ; droplet ; migration ; double spiral microchannel
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
项目资助者	This work was supported by the National Natural Science Foundation of China (Grant Nos. 11572334, 11272321 and 11402274).
课题组名称	LNM微纳米流体力学
论文分区	二类
力学所作者排名	True
引用统计	被引频次：110[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/311007/59719
专题	非线性力学国家重点实验室
通讯作者	Hu, GQ (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing Key Lab Engn Construct & Mechanobiol, Inst Mech, Beijing 100190, Peoples R China.; Hu, GQ (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China.
推荐引用方式 GB/T 7714	Xue CD,Chen XD,Liu C,et al. Lateral migration of dual droplet trains in a double spiral microchannel[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2016,59,7,:674711.
APA	Xue CD,Chen XD,Liu C,胡国庆,Hu, GQ ,&Hu, GQ .(2016).Lateral migration of dual droplet trains in a double spiral microchannel.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,59(7),674711.
MLA	Xue CD,et al."Lateral migration of dual droplet trains in a double spiral microchannel".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 59.7(2016):674711.

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