{
  "id": "cond-mat/0207267",
  "version": "v1",
  "published": "2002-07-10T16:09:51.000Z",
  "updated": "2002-07-10T16:09:51.000Z",
  "title": "Molecular dynamics simulations of vibrated granular gases",
  "authors": [
    "Alain Barrat",
    "Emmanuel Trizac"
  ],
  "journal": "Phys. Rev. E 66 (2002) 051303",
  "doi": "10.1103/PhysRevE.66.051303",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "We present molecular dynamics simulations of mono- or bidisperse inelastic granular gases driven by vibrating walls, in two dimensions (without gravity). Because of the energy injection at the boundaries, a situation often met experimentally, density and temperature fields display heterogeneous profiles in the direction perpendicular to the walls. A general equation of state for an arbitrary mixture of fluidized inelastic hard spheres is derived and successfully tested against numerical data. Single-particle velocity distribution functions with non-Gaussian features are also obtained, and the influence of various parameters (inelasticity coefficients, density...) analyzed. The validity of a recently proposed Random Restitution Coefficient model is assessed through the study of projected collisions onto the direction perpendicular to that of energy injection. For the binary mixture, the non-equipartition of translational kinetic energy is studied and compared both to experimental data and to the case of homogeneous energy injection (``stochastic thermostat''). The rescaled velocity distribution functions are found to be very similar for both species.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-07-10T16:09:51.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "molecular dynamics simulations",
      "vibrated granular gases",
      "fields display heterogeneous profiles",
      "energy injection",
      "bidisperse inelastic granular gases driven"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. E"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}