{
  "id": "1509.02696",
  "version": "v1",
  "published": "2015-09-09T09:50:16.000Z",
  "updated": "2015-09-09T09:50:16.000Z",
  "title": "Mesoscopic simulation of diffusive contaminant spreading in gas flows at low pressure",
  "authors": [
    "S. Schmieschek",
    "D. K. N. Sinz",
    "F. Keller",
    "U. Nieken",
    "J. Harting"
  ],
  "comment": "9 pages, 8 figures",
  "categories": [
    "physics.flu-dyn",
    "cond-mat.stat-mech",
    "physics.comp-ph"
  ],
  "abstract": "Many modern production and measurement facilities incorporate multiphase systems at low pressures. In this region of flows at small, non-zero Knudsen- and low Mach numbers the classical mesoscopic Monte Carlo methods become increasingly numerically costly. To increase the numerical efficiency of simulations hybrid models are promising. In this contribution, we propose a novel efficient simulation approach for the simulation of two phase flows with a large concentration imbalance in a low pressure environment in the low intermediate Knudsen regime. Our hybrid model comprises a lattice-Boltzmann method corrected for the lower intermediate Kn regime proposed by Zhang et al. for the simulation of an ambient flow field. A coupled event-driven Monte-Carlo-style Boltzmann solver is employed to describe particles of a second species of low concentration. In order to evaluate the model, standard diffusivity and diffusion advection systems are considered.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-09-09T09:50:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "low pressure",
      "diffusive contaminant spreading",
      "mesoscopic simulation",
      "gas flows",
      "event-driven monte-carlo-style boltzmann solver"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}