THEORETICAL AND EXPERIMENTAL STUDIES ON THE BEHAVIOR OF A COMPOUND DROP UNDER A UNIFORM DC ELECTRIC-FIELD

A finite element computational technique for predicting the behavior o f a compound drop which is composed of the shell and core phases and i s suspended stationarily in a continuous phase under the influence of a uniform DC electric field has been developed, and then the effects o f the electric field strength and the volume ratio of the core phase t o the shell phase on the circulations induced in each phases and the d rop deformations have been investigated. The computed results showed t he different behavior of the compound drop from that of a single drop due to the existence of the core phase with different physical propert ies inside the drop.