Molecular-dynamics force models for better control of energy dissipation in numerical simulations of dense granular media

We first describe the three-dimensional extension of the molecular-dynamics models for granular media simulations. We then discuss the known energy dissipation problem occurring when simulating dense granular media with the usual molecular-dynamics forces models. We finally propose a force model able to control the energy dissipation in the multiparticle contact situations typical to dense granular media, together with appropriate numerical results.


Published in:
Physical Review E, 65, 1, 011302
Year:
2002
Keywords:
Note:
doi:10.1103/PhysRevE.65.011302
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 Record created 2006-02-13, last modified 2018-01-27

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