A phase diagram for vibration-induced segregation of a single large particle through packed beds

Abstract

The rising behavior of a single large particle through packed beds is affected by vibration frequency and amplitude. In this work, we established a new phase diagram to quantify the effect of combined effect of both vibration parameters. The phase diagram consists of four distinct regions: the “static region” where the rising of the large particle does not occur at low amplitude or frequency; the “stable region” where, at the medium amplitude, the large particle can rise to the top and be stable, even at high frequencies; with the frequency or amplitude continuing to increase, the rising enters the “transition region” and the “shaking region” where the large particle moves up and down, showing more complex behavior.