(18b) CFD-DEM Modelling of Dilute-Phase Pneumatic Transport of Cohesive Dairy Powder in a Stainless Steel Pipe
The effects of milk powder properties (i.e. particle size, shape, density, cohesion, etc.) and/or conveying parameters (i.e. solid loading ratio, air velocity, bend configuration and orientation, etc.) on the flowability of the milk powder were investigated through the CFD-DEM model.
A thorough analysis of the effects of the various DEM parameters on particle transport was performed. These parameters (such as the surface energy of the milk powder) model the degree of cohesiveness of our dairy powders.
By modelling the particle-wall interactions, the effects of particle-geometry adhesion phenomena (i.e. particle deposition, resuspension, agglomeration, and clogging/blockage) can be used to analyse the critical conditions that must be satisfied to avoid complete pipe blockage during transport of cohesive powders.