应用科学学报 ›› 2016, Vol. 34 ›› Issue (6): 734-742.doi: 10.3969/j.issn.0255-8297.2016.06.009

• 电子技术 • 上一篇    下一篇

电磁场驱动离子液体流动研究

万静, 吴凌寻, 薛凤兰, 张宁澜, 黄一夫, 段鹏飞, 梁忠诚   

  1. 南京邮电大学光电工程学院, 南京 210023
  • 收稿日期:2015-11-13 修回日期:2016-05-15 出版日期:2016-11-30 发布日期:2016-11-30
  • 作者简介:万静,博士,副教授,研究方向:现代新型光器件,E-mail:1536676758@qq.com
  • 基金资助:

    国家自然科学基金(No.61574080,No.61274121)资助

Flow of Ionic Liquids under Electromagnetic Drive

WAN Jing, WU Ling-xun, XUE Feng-lan, ZHANG Ning-lan, HUANG Yi-fu, DUAN Peng-fei, LIANG Zhong-cheng   

  1. Photoelectric Engineering College, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
  • Received:2015-11-13 Revised:2016-05-15 Online:2016-11-30 Published:2016-11-30

摘要:

离子液体是一种新型材料,因良好的光电特性和不易挥发的特点而用于微流控技术.所研究的离子液体微流控驱动技术采用电磁场驱动法. 用两种理论方法研究了离子液体电磁驱动中的电场、磁场、洛仑兹力分布特性,并将理论结果与实验进行比较. 基于有限体积元数值仿真法的结果与实验一致,而基于泊肃叶定律的计算结果与实验值有较大差距,说明泊肃叶定律不适用于计算离子液体电磁驱动的流速. 通过数值仿真研究了不同形状微流道中的离子液体流场特性,有利于促进离子液体在微流控技术中的应用.

关键词: 电磁驱动, 离子液体, 洛仑兹力, 微流控技术

Abstract:

The emerging ionic liquids can be used in microfluidics due to their good photoelectric properties and non-volatile features. The flow characteristics of ionic liquids under electromagnetic drive are studied with two theoretic methods. The theoretical results are compared with experimental data. It is found that numerical results based on the finite voxel elements agree with the experimental data, while that based on the Poiseuille's law do not. Therefore, the Poiseuille's law is not a good choice in studying electromagnetic drive of ionic liquids. Flow characteristics in differently-shaped channels are investigated by numerical simulation. This research is useful in microfluidic applications of ionic liquids.

Key words: Lorentz force, microfluidics, electromagnetic drive, ionic liquids

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