[1]仲武,陈云飞,庄苹.电渗流泵的机理分析[J].东南大学学报(自然科学版),2003,33(3):307-311.[doi:10.3969/j.issn.1001-0505.2003.03.015]
 Zhong Wu,Chen Yunfei,Zhuang Ping.Mechanism analysis of electro-osmotic pump[J].Journal of Southeast University (Natural Science Edition),2003,33(3):307-311.[doi:10.3969/j.issn.1001-0505.2003.03.015]
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电渗流泵的机理分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
33
期数:
2003年第3期
页码:
307-311
栏目:
数学、物理学、力学
出版日期:
2003-05-20

文章信息/Info

Title:
Mechanism analysis of electro-osmotic pump
作者:
仲武1 陈云飞12 庄苹1
1 东南大学机械工程系, 南京 210096; 2 东南大学MEMS教育部重点实验室, 南京 210096
Author(s):
Zhong Wu1 Chen Yunfei12 Zhuang Ping1
1 Department of Mechanical Engineering, Southeast University, Nanjing 210096, China
2 Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
电渗流 纳维-司托克斯方程 无网格算法
Keywords:
electro-osmotic flow Navier-Stokes equations meshless
分类号:
O351.2
DOI:
10.3969/j.issn.1001-0505.2003.03.015
摘要:
以实现CPU的温度控制、提高微流体的流动速度为目标,对电渗流的机理进行了分析.应用无网格算法对Laplace方程、Poisson-Boltzmann方程、Navier-Stokes方程进行数值求解,得到的数值仿真结果与解析近似解吻合较好.对微直管内的微流体的流动进行了仿真,再现了微流体流动的驱动过程,并讨论了微流体的流动速度与外加垂直电场的电势和ζ电势的相关性.本文的数学模型不仅可以仿真几何形状简单的微直管内微流体的驱动过程,也可仿真几何形状复杂、ζ电势较大条件下的微直管内微流体的流动,为电渗流微泵的设计提供了仿真模型.
Abstract:
Mathematical models are set up for the electro-osmotic pump in this paper. The meshless algorithm is used to solve the Laplace equation, Poisson-Boltzmann equation and Navier-Stokes equations. The numerical results agree well with the closed form solution under low ζ potential, which proves the validity of the numerical solution. The simulation also uncovers the driven process of the micro-flow. It is demonstrated that the flat flow can be formed in a straight micro-tube acted by the external voltage. The flow rate is proportional to the external voltage and the ζ potential. This model can be used to analyze the micro-pumps with complex geometrical shapes.

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 江苏省自然科学基金资助项目(BK2002060)、国家自然科学基金资助项目(50275026).
作者简介: 仲武(1970—),男,硕士生; 陈云飞(联系人),教授, yunfeichen@seu.edu.cn.
更新日期/Last Update: 2003-05-20