On the coarsening dynamics of a granular lattice gas

  • E. OpsomerEmail author
  • M. Noirhomme
  • F. Ludewig
  • N. Vandewalle
Regular Article


We investigated experimentally and theoretically the dynamics of a driven granular gas on a square lattice and discovered two characteristic regimes: Initially, given the dissipative nature of the collisions, particles move erratically through the system and start to gather on selected sites called traps. Later on, the formation of those traps leads to a strong decrease of the grain mobility and slows down dramatically the dynamics of the entire system. We realize detailed measurements linking a trap's stability to the global evolution of the system and propose a model reproducing the entire dynamics of the system. Our work emphasizes the complexity of coarsening dynamics of dilute granular systems.

Graphical abstract


Flowing Matter: Granular Matter 


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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • E. Opsomer
    • 1
    Email author
  • M. Noirhomme
    • 1
  • F. Ludewig
    • 1
  • N. Vandewalle
    • 1
  1. 1.GRASP, Physics Department B5aUniversity of LiègeLiègeBelgium

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