A 2D hysteretic Discrete Element Method (DEM) model is developed for simulating the flow of food particles, specifically with multi-material 3D printing processes in mind. Particles are modeled as arbitrarily shaped polygons due to diverse nature powders, which can be highly irregular shape. The force applicable both convex and concave polygonal particles. It adjusted use a proportional weighte...

Poor understanding of the flow behavior granular biomass material poses great challenges for bioenergy industry, as equipment functioning time is significantly reduced by handling issues like screw feeder clogging and hopper arching. In this work, loblolly pine chips, including mass rate critical outlet width, in a wedge-shaped investigated combining physical experiments numerical simulations. ...

We investigate the self-assembly of anisotropic cone-shaped particles decorated by ringlike attractive "patches". In a recent paper, we demonstrated that the self-assembled clusters, which arise due to the conical particle's anisotropic shape combined with directional attractive interactions, are precise for certain cluster sizes, resulting in a precise packing sequence of clusters of increasin...

We study numerically frictionless ellipse packings versus the aspect ratio alpha, and find that the jamming transition is fundamentally different from that for spherical particles. The normal mode spectra possess two gaps and three distinct branches over a range of alpha. The energy from deformations along modes in the lowest-energy branch increases quartically, not quadratically. The quartic m...

We implement microfabricated boomerang particles with unequal arm lengths as a model for nonsymmetric particles and study their Brownian motion in a quasi-two-dimensional geometry by using high-precision single-particle motion tracking. We show that because of the coupling between translation and rotation, the mean squared displacements of a single asymmetric boomerang particle exhibit a nonlin...