Electrowetting droplets investigated with smoothed particle hydrodynamics and moving least squares

Author

Weiss, Dennis ; Greiner, Andreas ; Lienemann, Jan ; Korvink, Jan G.

Author_Institution

Dept. of Microsyst. Eng., Univ. of Freiburg, Freiburg, Germany

fYear

2012

fDate

5-8 March 2012

Firstpage

304

Lastpage

307

Abstract

The numerical analysis of oscillating electrowetting droplets is challenging predominantly due to the frequent change in topology of the phases involved and the coupling of electrostatic forces into the system. Damped systems require an even larger number of oscillations or simulation time steps, respectively, until resonance becomes apparent, and an efficient model is required.

Keywords

Laplace equations; Legendre polynomials; contact angle; drops; electrohydrodynamics; fluidics; least mean squares methods; multiphase flow; surface energy; surface tension; wetting; Korteweg-Helmholtz body force; Lagrangian discretisation points; Laplace equation; Legendre polynomials; Young´s law; damped system; droplet equilibrium contact angle; droplet shape; electric field distribution; electrostatic forces; fluid particles; fluidics; harmonic excitation patterns; liquid phase; liquid-solid surface energy; meshless particle method; momentum equation; moving least squares method; multiphase flow; numerical analysis; oscillating electrowetting droplets; smoothed particle hydrodynamics; solid phase; surface tension; three-phase system; time-harmonic component; Electrodes; Frequency domain analysis; Gold; Nanoelectromechanical systems; Physics; Polynomials;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems (NEMS), 2012 7th IEEE International Conference on

Conference_Location

Kyoto

Print_ISBN

978-1-4673-1122-9

Type

conf

DOI

10.1109/NEMS.2012.6196780

Filename

6196780