English, Article edition: MODELS OF FREE COOLING GRANULAR GASES UMBERTO MARINI BETTOLO MARCONI; ANDREA BALDASSARRI; ANDREA PUGLISI

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Bookmark: http://trove.nla.gov.au/version/133907
Physical Description
  • article
Language
  • English

Edition details

Title
  • MODELS OF FREE COOLING GRANULAR GASES
Author
  • UMBERTO MARINI BETTOLO MARCONI
  • ANDREA BALDASSARRI
  • ANDREA PUGLISI
Physical Description
  • article
Notes
  • We consider the free evolution of systems of granular particles whose dynamics is characterized by a collision rule which preserves the total momentum, but dissipates the kinetic energy. Starting from an inelastic version of a minimal model proposed by Ulam for a gas of Maxwell molecules, we introduce a new lattice model aimed at investigating the role of dynamical correlations and the onset of spatial order induced by the inelasticity of the interactions. We study, in one- and two-dimensional cases, the velocity distribution, the decay of the energy, the formation of spatial structures and topological defects. Finally, we relate our findings to other models known in other fields.
  • Rapid granular flows, kinetic theory for granular gases, ordering kinetics, inelastic Maxwell gas, shear instability, lattice models
  • RePEc:wsi:acsxxx:v:04:y:2001:i:04:p:321-331
Language
  • English
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