Modelling and Computer Simulation of Granular Media

The purpose of this chapter is twofold; to give an introduction into the physics of granular media, emphasizing modern concepts and research topics, and to review the models most pertinent to the computer simulation of these phenomena. Soft-particle molecular dynamics, event-driven molecular dynamics, the contact dynamics of Moreau and Jean, and the bottom-to-top-restructuring model are discussed in detail. Their range of applicability is carefully assessed, artefacts are pointed out, and key results obtained with the respective methods are presented.

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