1996/09/06 by Sean McNamara, Jean-Louis Barrat, Jean‐Louis Barrat · 4 citations
Engineering · Physics and Astronomy · #Geotechnical and Geomechanical Engineering #Granular flow and fluidized beds #Mineral Processing and Grinding #cond-mat
paper · pdf · doi:10.1103/physreve.55.7767
5 pages, revtex, 7 postscript figures
arxiv created 1996/09/06 · openalex publication_date 1997/06/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the power input of a vibrating wall into a fluidized granular medium, using event-driven simulations of a model granular system. The system consists of inelastic hard disks contained between a stationary and a vibrating elastic wall, in the absence of gravity. Two scaling relations for the power input are found, both involving the pressure. The transition between the two occurs when waves generated at the moving wall can propagate across the system. Choosing an appropriate wave form for the vibrating wall removes one of these scalings and renders the second very simple.