Cumulative effect of particle properties on mixing of multi-component mixture in a vibrated packed bed

Influence of aspect ratio of ellipsoidal particles on mixing in vibrated packed bed using discrete element method

“…Hashemnia 31 observed that in the case of spherical particles, the presence of fully developed convection rolls and a stronger convective flow enhances mixing. This article is an extension of previous research works Yogi et al 11,41,48 These studies in vibrating packed bed have established that when there is a significant disparity in the sizes of the particles within the system, percolation becomes the prevailing phenomenon (Yogi et al). 11 When there is a difference in density, buoyancy is the more dominating phenomenon explained in the work done by Yogi et al 41 When the difference in size ratio is less than 1.5 the convection mechanism is more dominating than percolation (Yogi et al).…”

“…Granular materials have a tendency to segregate during flow when there are differences in particle characteristics such as cohesiveness, shape, size, and density. [32][33][34][35][36] Three frequent mechanisms have been proposed to explain the segregation/mixing behavior of particles, which includes percolation, [37][38][39][40] buoyancy, 33,41 and convection. 42,43 The mechanisms of segregation in the system are percolation and buoyancy, while convection is the mechanism responsible for mixing.…”

“…This mechanism is driven by the density differences between particles, which causes them to sort themselves out according to their weight. 33,45 In the study by Yogi et al, 41 the authors examined the mixing behavior of multicomponent mixtures in a vibrated packed bed. Their investigation focused specifically on examining the influence of buoyancy and percolation segregation mechanisms on the mixing process.…”

Influence of aspect ratio of ellipsoidal particles on mixing in vibrated packed bed using DEM

“…Granular materials have a tendency to segregate during flow when there are differences in particle characteristics such as cohesiveness, shape, size, and density 26,27,28,29,30 . Three frequent mechanisms have been proposed to explain the segregation/mixing behavior of particles, which includes percolation 31,32,33,34 , buoyancy 27,35 , and convection 36,37 . The mechanisms of segregation in the system are percolation and buoyancy, while convection is the mechanism responsible for mixing.…”

“…This mechanism is driven by the density differences between particles, which causes them to sort themselves out according to their weight 27,39 . In the study by Yogi et al 35 , the authors examined the mixing behavior of multi-component mixtures in a vibrated packed bed. They specifically investigated the impact of buoyancy and percolation segregation mechanisms on the mixing process.…”