NDLI: Numerically modeled dynamic response of perfect and leaky dielectric droplets in an electric field

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2006 International Conference on MEMS, NANO, and Smart Systems

2005 International Conference on MEMS,NANO and Smart Systems

Proceedings. 2005 International Conference on MEMS, NANO and Smart Systems

2005 International Conference on MEMS,NANO and Smart Systems - Copyright

Conference Committee

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Numerically modeled dynamic response of perfect and leaky dielectric droplets in an electric field

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2004 International Conference on MEMS, NANO and Smart Systems (ICMENS'04)

Proceedings International Conference on MEMS, NANO and Smart Systems

Numerically modeled dynamic response of perfect and leaky dielectric droplets in an electric field

Content Provider	IEEE Xplore Digital Library
Author	Supeene, G. Koch, C.R. Bhattacharjee, S.
Copyright Year	2005
Description	Author affiliation: Dept. of Mech. Eng., Alberta Univ., Edmonton, Alta., Canada (Supeene, G.; Koch, C.R.; Bhattacharjee, S.)
Abstract	Summary form only given. A dielectric liquid droplet in an immiscible dielectric medium will deform when subjected to an external electric field. This effect is a component of the motion seen in electrically actuated droplets in a lab-on-a-chip setting, and is being studied in order to provide a basis for modeling electrowetting actuation behaviour. It is, however, a widely studied phenomenon in its own right, and can be employed in various emulsion technologies. The present work is a finite element analysis of both the perfect and leaky dielectric models, taking into account the time dependence of the deformation and the nonlinearity encountered when the deformation becomes large. In order to assess the accuracy of the model, comparisons are made with the classical small-deformation analytic results and with recent finite element results. The effects of the fluid properties and the applied field on the transient response and the resulting deformation are observed, and the transient response in particular is analyzed in order to provide a basis for dynamic control of the system. This could lead to a strategy for reliably controlling the behaviour of droplets under electrowetting actuation on a microfluidic chip.
File Size	60373
File Format	PDF
ISBN	0769523986
DOI	10.1109/ICMENS.2005.92
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Numerical models Deformable models Predictive models Dielectric liquids Finite element methods Transient response Microfluidics Mechanical engineering Dielectrics and electrical insulation Stress
Content Type	Text
Resource Type	Article

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