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	A numerical method for two-phase flow in micro channels and its application to droplet control by electrowetting on dielectric
	Wang, F ; He, F
	2010-05-10 ; 2010-05-10
关键词	electrowetting on dielectric( EWOD) contact angle level set function projection COUPLED LEVEL SET OF-FLUID METHOD SURFACE-TENSION ACTUATION Physics, Multidisciplinary
中文摘要	With the development of micro chemical and medical analysis in MEMS, micro-fluid-control chip becomes more and more popular. Based on discrete droplet control system, chemical and medical analysis is applied in the micro chip lab. The change of voltage between the dielectric layer of the electrode controls the wettability of a droplet on a dielectric solid surface and then makes it possible to create, transport, merge and cut the micro droplets. This paper presents a numerical method to simulate the droplet motion by electrowetting on dielectric (EWOD). The second-order projection method is carried out to solve N-S equations and level set function. The interface is captured as zero level set. Dynamic contact angle for fluid contacting a solid surface by the electric potential is used to evaluate the wettability of fluid by EWOD. The numerical scheme is based on staggered MAC grid. Numerical simulations are used to capture the interface between two kinds of fluids in micro channels, the shapes of micro droplets resting on the horizontal solid surface under different electric potential and the transportation of a micro droplet in a parallel-plate channel when electrodes are activated.
语种	中文 ; 中文
出版者	CHINESE PHYSICAL SOC ; BEIJING ; P O BOX 603, BEIJING 100080, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22533]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, F,He, F. A numerical method for two-phase flow in micro channels and its application to droplet control by electrowetting on dielectric[J],2010, 2010.
APA	Wang, F,&He, F.(2010).A numerical method for two-phase flow in micro channels and its application to droplet control by electrowetting on dielectric..
MLA	Wang, F,et al."A numerical method for two-phase flow in micro channels and its application to droplet control by electrowetting on dielectric".(2010).

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