electrostatic film actuator, EFA

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I want to perform a simulation using COMSOL Multiphysics 6.3: It is a 2D model with nine thin electrodes embedded in a thin resin layer, and a small water droplet is placed on the resin. The electrodes are 0.1 mm wide with a 0.1 mm gap between them. Every three electrodes form one group. Within each group, the electrodes are connected to three‑phase sinusoidal AC with a 120° phase difference; all groups use the same phase sequence. The time‑varying electric field forms a traveling wave, which induces charges inside the water droplet. Under the action of the electric force, the water droplet is driven to move in one direction. I don’t know how to implement this. I have tried coupling Electrostatics (ES) with laminar flow and two‑phase flow, but I cannot get the results I want.



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