Numerical Modeling of 3D Electrowetting Droplet Actuation and Cooling of a Hotspot

Three dimensional Electrowetting on Dielectric droplet actuation have been numerically studied using COMSOL Multiphysics Two-phase Flow, Phase Field and Level Set Method. Phase Field method has been found to be more accurate in maintaining more acceptable droplet shape although Conservative Level Set method has been proved to be more effective in conserving droplet mass. A simplified single phase heat transfer conjugate convection problem for liquid droplet cooling of a hotspot has been also developed and numerically solved. Finally, this Multiphysics simulation has been compared to the experimental results.

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