Dynamics and Mutual Influence of Droplets in a Rotating Liquid Under Centrifugal Forces

The article presents the results of experimental studies of the velocity of liquid droplets in a chain under the action of centrifugal forces in a uniformly rotating liquid continuous phase. The aim of the work is to study the mutual influence of droplets on each other through the analysis of entrainment, simplified to plane motion. An experimental setup was developed based on a cylindrical vessel with adjustable angular velocity, a droplet-forming device, and stroboscopic photography to record trajectories. The methodology includes phase saturation, adjustment of the dispersed phase flow rate, and two shooting modes to minimize errors. The dependencies of the satellite trail velocity (Vsp) on the radial distance (R) and the drop frequency (f) were obtained for three liquid systems; based on regression analysis, a generalized formula Vsp=k·Ra·fb was proposed, providing satisfactory agreement between the calculated and experimental data (deviation < 10%). The results confirm the increase in Vsp with increasing R and f, which allows optimizing the extraction and mass transfer processes in centrifugal devices.