Electrothermally induced flow in AC EWOD droplet
Abstract
We show a novel way of generating electrohydrodynamic motion inside a droplet under AC electrowetting. Using a very low applied voltage (10<V) strong electrothermal motion can be generated in the droplet. Alternating current electrothermal (ACET) actuation originates due to imposed Joule heating into the fluid body via applied electric field. A parametric study based on operating parameters and geometrical parameter is conducted experimentally and numerically. With the operating ranges of parameters, high fluid velocity of the order of mm/s can be generated inside the droplet. Further improvement in fluid motion can be anticipated through optimization technique. The investigations revealed in the analysis can be used as useful tool in the design of efficient drop-based micromixer.
Cite
@article{arxiv.1804.06427,
title = {Electrothermally induced flow in AC EWOD droplet},
author = {Golak Kunti and Anandaroop Bhattacharya and Suman Chakraborty},
journal= {arXiv preprint arXiv:1804.06427},
year = {2018}
}
Comments
There is an error in the Fig. 2. Error bar which is shown in the Fig should be 50 micron instead of 350 micron