Effects of Asymmetrical Micro Electrode Surface Topography to AC Electroosmosis flow Rate
Abstract
AC Electroosmosis (ACEO) has many advantages such as low power consumption, non-moving parts, and easy to integrate etc., so it is widely used for low concentration microfluid manipulation in low frequency range. Classical ACEO theory assumes that electric double layer (EDL) is the main cause of electric field induced flow, and gives electric-flow field coupling equations for ACEO flow rate. But the calculation data usually are tens times faster than the experimental velocities. In this paper, electrode surface topography is included to solve ACEO flow rate. With electrode surface roughness as the characteristic parameter, equivalent EDL model is set up to modify the classical EDL model. The relationship between flow rate and electrode surface roughness is studied. Experiment results agree with the simulation very well, proving the feasibility of equivalent EDL model.
Keywords
Cite
@article{arxiv.1006.3660,
title = {Effects of Asymmetrical Micro Electrode Surface Topography to AC Electroosmosis flow Rate},
author = {Jiang Hong-Yuan and Li Shan-Shan and Hou Zhen-Xiu and Ren Yu-Kun and Sun Yong-Jun},
journal= {arXiv preprint arXiv:1006.3660},
year = {2012}
}
Comments
withdraw, not finished yet