Figure 4.

(a) Rendering of the COMSOL computational domain for the configuration of droplets in the 2D emulsion subject to a uniform field (up-to-down) as depicted in the image of Figure 2 at 1.94 s, prior to electrocoalescence events. Also shown is a superposition of the magnitude of the electric field (in the uniform field direction) in the oil and droplet phases. (b) Color map of the magnitude of the electric field for the inset region shown in (a). (c) Color map of the electrostatic potential around the droplets for the scale as in (a).