{
  "id": "1311.4598",
  "version": "v1",
  "published": "2013-11-19T00:42:46.000Z",
  "updated": "2013-11-19T00:42:46.000Z",
  "title": "Heat flux scaling in turbulent Rayleigh-Bénard convection with an imposed longitudinal wind",
  "authors": [
    "Andrea Scagliarini",
    "Armann Gylfason",
    "Federico Toschi"
  ],
  "comment": "5 pages, 4 figures",
  "categories": [
    "physics.flu-dyn",
    "nlin.CD"
  ],
  "abstract": "We present a numerical study of Rayleigh-B\\'enard convection disturbed by a longitudinal wind. Our results show that under the action of the wind, the vertical heat flux through the cell initially decreases, due to the mechanism of plumes-sweeping, and then increases again when turbulent forced convection dominates over the buoyancy. As a result, the Nusselt number is a non-monotonic function of the shear Reynolds number. We provide a simple model that captures with good accuracy all the dynamical regimes observed. We expect that our findings can lead the way to a more fundamental understanding of the of the complex interplay between mean-wind and plumes ejection in the Rayleigh-B\\'enard phenomenology.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-11-19T00:42:46.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "47.27.-i",
      "47.55.pb"
    ],
    "keywords": [
      "turbulent rayleigh-bénard convection",
      "imposed longitudinal wind",
      "heat flux scaling",
      "shear reynolds number",
      "turbulent forced convection dominates"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevE.89.043012",
      "journal": "Physical Review E",
      "year": 2014,
      "month": "Apr",
      "volume": 89,
      "number": 4,
      "pages": "043012"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014PhRvE..89d3012S"
    }
  }
}