摘要
采用水平集方法为电润湿力驱动的夹层式数字微流控系统建模,利用有限元软件进行仿真,讨论了在电极长度固定的条件下,上下极板间隙的变化对液滴接触线所受到的总压及运动速度的影响,并对仿真结果进行评估.同时,得出了能使液滴分裂的电极长度与极板间隙比例的有效范围,为芯片设计提供参考.
The impact of the vertical gap between plates on the droplet splitting in a covered digital microfluidic system driven by electrowetting is discussed. Firstly, the system is modeled with the level set method. Then a finite element software is used to simulate the splitting process. With the fixed electrode length and different vertical gaps between the top plate and the bottom plate, the changes of the total press and the velocity of contact lines is discussed, and the simulation results is evaluated. Finally, a ratio range of electrode length to plate gap that may split the droplet effectively is given, which provides a reference for the chip design.
出处
《武汉大学学报（理学版）》
CAS
CSCD
北大核心
2012年第5期415-418,共4页
Journal of Wuhan University:Natural Science Edition
基金
天津市自然科学基金资助项目(08JCYB JC03100)
关键词
数字微流控
电润湿
水平集
极板间隙
电极长度
digital microfluidic
electrowetting
level set
plate gap
electrode length
