| 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.
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| Source Publication | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
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| 2016 | |
| Volume | 59Issue:7Pages:674711 |
| ISSN | 1674-7348 |
| Abstract | 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. |
| Keyword | Microfluidics Droplet Migration Double Spiral Microchannel |
| DOI | 10.1007/s11433-016-0115-1 |
| URL | 查看原文 |
| Indexed By | SCI ; EI ; CSCD |
| Language | 英语 |
| WOS ID | WOS:000384212100005 |
| WOS Keyword | microfluidics ; droplet ; migration ; double spiral microchannel |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| Funding Organization | This work was supported by the National Natural Science Foundation of China (Grant Nos. 11572334, 11272321 and 11402274). |
| Department | LNM微纳米流体力学 |
| Classification | 二类 |
| Ranking | True |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/59719 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | 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. |
| Recommended Citation 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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| a2016-172.pdf（5084KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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