Level Set Based Modeling of Electrowetting on Dielectrics Droplet

Yin Xia Chang; Si Xiang Zhang; Wei Zhou; Bao Liu

doi:10.4028/www.scientific.net/AMR.461.138

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 461Level Set Based Modeling of Electrowetting on...

Level Set Based Modeling of Electrowetting on Dielectrics Droplet

Abstract:

This paper discusses the modeling of Electrowetting On Dielectric (EWOD) device that moves fluid droplets through surface tension effects and electric force. Instead of using a static contact angle as most papers did, we take the dynamic contact angle into count by using expression proposed by Voinov and Tanner. Firstly, the level set model and its initial values is present. Then the governing equations are discussed, and the diffused format is adopted for density and viscosity varies to smooth over the interface. The detailed expression for surface tension and electric force are also described for Navier–Stokes equations. After presenting the boundary conditions, the steps of numerical implementation are detailed.

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Periodical:

Advanced Materials Research (Volume 461)

Pages:

138-141

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.461.138

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Online since:

February 2012

Authors:

Yin Xia Chang, Si Xiang Zhang, Wei Zhou, Bao Liu

Keywords:

Droplet, Dynamic Contact Angle, EWOD, Level Set

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