2003/01/13 by A. Ferguson, A Ferguson, B. Fisher +3 · 1 citation
Engineering · Environmental Science · Physics and Astronomy · #Granular flow and fluidized beds #Landslides and related hazards #Particle Dynamics in Fluid Flows #cond-mat.soft
paper · pdf · doi:10.1209/epl/i2003-10190-3
4 pages, 4 figures
arxiv created 2003/01/13 · openalex publication_date 2004/04/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We study the impulse distribution in a model of gravity-driven granular flow and show that changes in the distribution are correlated with the appearance of clusters of "frequently-colliding" particles. Our simulations show increasingly large linear clusters as the flow velocity decreases. The dissipative nature of the collisions leads to an increase of small-impulse events as the size of these clusters grow and can explain the observed changes in the impulse distribution as the flow rate decreases.