Volume 7, Issue 5
Numerical Simulation for a Droplet Fission Process of Electrowetting on Dielectric Device

Dongdong He, Huaxiong Huang & Yongji Tan

Commun. Comput. Phys., 7 (2010), pp. 1076-1094.

Published online: 2010-07

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  • Abstract

Electrowetting has been proposed as a technique for manipulating droplets surrounded by air or oil. In this paper, we discuss the modeling and simulation of the droplet fission process between two parallel plates inside an electrowetting on dielectric (EWOD) device. Since the gap between the plates is small, we use the two-phase Hele-Shaw flow as a model. While there are several high order methods around, such as the immersed interface methods [1, 2], we decide to use two first-order methods for simplicity. A ghost-fluid (GF) method is employed to solve the governing equations and a local level set method is used to track the drop interface. For comparison purposes, the same set of two-phase Hele-Shaw equations are also solved directly using the immersed boundary (IB) method. Numerical results are consistent with experimental observations reported in the literature.

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@Article{CiCP-7-1076, author = {}, title = {Numerical Simulation for a Droplet Fission Process of Electrowetting on Dielectric Device}, journal = {Communications in Computational Physics}, year = {2010}, volume = {7}, number = {5}, pages = {1076--1094}, abstract = {

Electrowetting has been proposed as a technique for manipulating droplets surrounded by air or oil. In this paper, we discuss the modeling and simulation of the droplet fission process between two parallel plates inside an electrowetting on dielectric (EWOD) device. Since the gap between the plates is small, we use the two-phase Hele-Shaw flow as a model. While there are several high order methods around, such as the immersed interface methods [1, 2], we decide to use two first-order methods for simplicity. A ghost-fluid (GF) method is employed to solve the governing equations and a local level set method is used to track the drop interface. For comparison purposes, the same set of two-phase Hele-Shaw equations are also solved directly using the immersed boundary (IB) method. Numerical results are consistent with experimental observations reported in the literature.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.2009.09.012}, url = {http://global-sci.org/intro/article_detail/cicp/7665.html} }
TY - JOUR T1 - Numerical Simulation for a Droplet Fission Process of Electrowetting on Dielectric Device JO - Communications in Computational Physics VL - 5 SP - 1076 EP - 1094 PY - 2010 DA - 2010/07 SN - 7 DO - http://doi.org/10.4208/cicp.2009.09.012 UR - https://global-sci.org/intro/article_detail/cicp/7665.html KW - AB -

Electrowetting has been proposed as a technique for manipulating droplets surrounded by air or oil. In this paper, we discuss the modeling and simulation of the droplet fission process between two parallel plates inside an electrowetting on dielectric (EWOD) device. Since the gap between the plates is small, we use the two-phase Hele-Shaw flow as a model. While there are several high order methods around, such as the immersed interface methods [1, 2], we decide to use two first-order methods for simplicity. A ghost-fluid (GF) method is employed to solve the governing equations and a local level set method is used to track the drop interface. For comparison purposes, the same set of two-phase Hele-Shaw equations are also solved directly using the immersed boundary (IB) method. Numerical results are consistent with experimental observations reported in the literature.

Dongdong He, Huaxiong Huang & Yongji Tan. (2020). Numerical Simulation for a Droplet Fission Process of Electrowetting on Dielectric Device. Communications in Computational Physics. 7 (5). 1076-1094. doi:10.4208/cicp.2009.09.012
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