Title :
Behavior of a moving droplet under electrowetting actuation in microchannel
Author :
Dolatabadi, A. ; Mohseni, K.
Author_Institution :
Dept. of Mech. & Ind. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
This paper studies the numerical simulation of the movement of a liquid droplet in a microchannel under electrostatic actuation. The surface tension between the liquid-solid interface is modified by an external electric field, which reduces the meniscus contact angle and induces motion of a droplet electrowetting in microchannels and the droplet velocities of several centimetres per second has been observed. In this analysis volume of fluid (VOF) technique is employed to solve the electrowetting problems.
Keywords :
channel flow; contact angle; drops; electrostatic actuators; interface phenomena; surface tension; wetting; electrostatic actuation; electrowetting actuation; external electric field; liquid droplet; liquid-solid interface; meniscus contact angle; microchannel; surface tension; volume of fluid technique; Energy consumption; Equations; Fluid flow; Heating; Industrial engineering; Microchannel; Stress; Surface morphology; Surface tension; Voltage;
Conference_Titel :
MEMS, NANO and Smart Systems, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7695-2398-6
DOI :
10.1109/ICMENS.2005.30
