Numerical modeling of Joule heating effects in insulator-based dielectrophoresis microdevices
文献类型：期刊论文
| 作者 | Kale A; Patel S; Hu GQ(胡国庆) ; Xuan XC
|
| 刊名 | ELECTROPHORESIS
 |
| 出版日期 | 2013-03 |
| 卷号 | 34期号:5页码:674-683 |
| 通讯作者邮箱 | guoqing.hu@imech.ac.cn; xcxuan@clemson.edu |
| 关键词 | Electrokinetic EOF Electrothermal flow Insulator-based dielectrophoresis Joule heating Microfluidics |
| ISSN号 | 0173-0835 |
| 产权排序 | [Kale, Akshay; Patel, Saurin; Xuan, Xiangchun] Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USA; [Hu, Guoqing] Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China |
| 通讯作者 | Xuan XC (reprint author), Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USA. |
| 合作状况 | 国际 |
| 中文摘要 | Insulator-based DEP (iDEP) has been established as a powerful tool for manipulating particles in microfluidic devices. However, Joule heating may become an issue in iDEP microdevices due to the local amplification of electric field around the insulators. This results in an electrothermal force that can manifest itself in the flow field in the form of circulations, thus affecting the particle motion. We develop herein a transient, 3D, full-scale numerical model to study Joule heating and its effects on the coupled transport of charge, heat, and fluid in an iDEP device with a rectangular constriction microchannel. This model is validated by comparing the simulation results with the experimentally obtained fluid flow patterns and particle images that were reported in our recent works. It identifies a significant difference in the time scales of the electric, temperature, and flow fields in iDEP microdevices. It also predicts the locations of electrothermal flow circulations in different halves of the channel at the upstream and downstream of the constriction. |
| 学科主题 | 微机电系统中的流体力学问题 |
| 分类号 | 二类/Q1 |
| 收录类别 | SCI |
| 资助信息 | NSF [CBET-0853873]; Clemson University; MOST [2011CB707604]; NSFC [11272321, 11102214]; CAS [KJCX2-YW-H18]; LNM |
| 原文出处 | http://dx.doi.org/10.1002/elps.201200501 |
| 语种 | 英语 |
| WOS记录号 | WOS:000316267100008 |
| 公开日期 | 2013-04-16 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47163]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Kale A,Patel S,Hu GQ,et al. Numerical modeling of Joule heating effects in insulator-based dielectrophoresis microdevices[J]. ELECTROPHORESIS,2013,34(5):674-683. |
| APA | Kale A,Patel S,Hu GQ,&Xuan XC.(2013).Numerical modeling of Joule heating effects in insulator-based dielectrophoresis microdevices.ELECTROPHORESIS,34(5),674-683. |
| MLA | Kale A,et al."Numerical modeling of Joule heating effects in insulator-based dielectrophoresis microdevices".ELECTROPHORESIS 34.5(2013):674-683. |
入库方式： OAI收割
来源：力学研究所
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