Experimental study and DEM analysis of granular segregation in a rotating drum

Determining of the influence of reactor parameters on the uniformity of mixing substrate components

“…Study [21] demonstrated the practical application of a discrete-element method when modeling actual industrial processes. The study analyzed the agitation of different combinations of binary mixtures, which varied in density and size.…”

“…Both the low reliability of control devices and the complexities of mathematical calculations reduce the effectiveness of known techniques to determine the kinematic parameters of the movement of the particle of the material in a rotating drum. Therefore, the analytical and experimental studies' results, reported in works [15][16][17][18][19][20][21][22][23][24][25][26][27], are approaching the actual modes of movement of the studied environment only in terms of external features and qualitative characteristics. In addition, they mainly relate to dry loose materials.…”

“…There are no such studies in the multicomponent substrates with humidity up to 80 %. In addition, according to quantitative indicators, the data from works [15][16][17][18][19][20][21][22][23][24][25][26][27] differ significantly.…”

DPM model segregation validation and scaling effect in a rotary drum

“…As an example, a radially segregated drum bed in the rolling regime at steady state consists of a core of mostly smaller/more dense particles surrounded by more larger/less dense particles. In the case that particles can be distinguished by their diameter, segregation is caused by percolation of small particles in between large particles [15][16][17].…”

“…These methods involve individual particle tracking using Newton's law of motion where discrete particle sphere experiences collision forces due to overlaps. These forces are modelled with parameters such as stiffness, restitution and friction [17]. Thus, depending on the collision properties of real particles model discrete phase collision parameters need to be tuned.…”