Stress and large-scale spatial structures in dense, driven granular flows
Stress and large-scale spatial structures in dense, driven granular flows
We study the appearance of large-scale dynamical heterogeneities in a simplified model of a driven, dissipative granular system. Simulations of steady-state gravity-driven flows of inelastically colliding hard disks show the formation of large-scale linear structures of particles with a high collision frequency. These chains can be shown to carry much …