Documents

DOI

The computation time of Discrete Element Method (DEM) simulations increases exponentially when particle size is reduced or the number of particles increased. This critical challenge limits the use of DEM simulation for industrial applications, such as powder flow in silos. Scaling techniques can offer a solution to reduce computation time. In this paper, we have developed a hybrid particle-geometric scaling approach with a focus on Elasto-Plastic Adhesive contact models. It established relationships between particle scaling factors and DEM contact input parameters. The isolated effects of varying particle size and geometric dimensions on bulk properties were also evaluated using uniaxial consolidation, static angle of repose, and ring shear tests. This paper shows how the particle scaling can be applied together with geometric scaling to incorporate two important aspects of bulk materials, their Elasto-Plastic behaviour and their cohesive forces.

Original languageEnglish
Pages (from-to)72-87
JournalPowder Technology
Volume369
DOIs
Publication statusPublished - 2020

    Research areas

  • Angle of repose, Coarse graining, Cohesive bulk materials, Particle-geometric scaling, Ring shear test, Uni-axial consolidation

ID: 73409746