Liquid extraction during drop formation: Effect of formation time

Abstract

Abstract This study was designed to evaluate the effects of internal droplet convection on the extraction that occurs during generation of a dispersed phase. A photographic determination of dispersed‐phase controlled mass transfer from liquid droplets in the formation stage demonstrates a strong dependence on formation time. Convection appears to control mass transfer during rapid drop formation, but an abrupt transition in transfer coefficient occurs as time of formation increases. Diffusion calculations overestimate total extraction for long formation times.