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Coarse-Grained Descriptions

Résumé : Coarse-grained approaches are widely considered for analyzing multiatomic systems. They are based on the used of simplified interatomic potentials, that allow deriving most of the macroscopic thermomechanical properties of materials. Molecular dynamics can coarsened at its turn leading to dissipative particle dynamics and multi-particle collision dynamics. Finally, for addressing larger systems, Langevin and diffusion equations are usually considered; the last in very close connection with Brownian mechanics and its fractional variant. This chapter revisits all these physical descriptions.
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Francisco Chinesta, Emmanuelle Abisset-Chavanne. Coarse-Grained Descriptions. A Journey Around the Different Scales Involved in the Description of Matter and Complex Systems A Brief Overview with Special Emphasis on Kinetic Theory Approaches, Springer, pp.41-68, 2018, ⟨10.1007/978-3-319-70001-4_3⟩. ⟨hal-02794768⟩

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