Granular Hydrodynamics and Pattern Formation in Vertically Oscillated Granular Disks Layers

Details Granular Hydrodynamics and Pattern Formation in Vertically Oscillated Granular Disks Layers Granular Hydrodynamics and Pattern Formation in Vertically Oscillated Granular Disks Layers

2006-12-12

arxiv.org/abs/cond-mat/0612276v1

Physics

Condensed Matter

Statistical Mechanics

23 pages, 8 figures, online supplementary material

Scientific paper

A numerical hydrodynamic model of a vibrated granular bed in 2D is elaborated based on a highly accurate Shock Capturing scheme applied to the compressible Navier-Stokes equations for granular flow. The hydrodynamic simulation of granular flows is numerically difficult, particularly in systems where dilute and dense regions occur at the same time and interact with each other. As an example of such a problematic system we investigate the formation of Faraday waves in a 2d system which is exposed to vertical vibration in the presence of gravity. The results of the CHD agree quantitatively well with event-driven Molecular Dynamics.

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