{
  "id": "physics/0304080",
  "version": "v1",
  "published": "2003-04-22T07:32:56.000Z",
  "updated": "2003-04-22T07:32:56.000Z",
  "title": "Forced Stratified Turbulence: Successive Transitions with Reynolds Number",
  "authors": [
    "Jean-Philippe Laval",
    "James C. McWilliams"
  ],
  "comment": "8 pages, 5 figures (submitted to Phys. Rev. E)",
  "journal": "Phys. Rev. E, vol 68, 036308 (2003)",
  "doi": "10.1103/PhysRevE.68.036308",
  "categories": [
    "physics.flu-dyn",
    "physics.ao-ph",
    "physics.geo-ph"
  ],
  "abstract": "Numerical simulations are made for forced turbulence at a sequence of increasing values of Reynolds number, R, keeping fixed a strongly stable, volume-mean density stratification. At smaller values of R, the turbulent velocity is mainly horizontal, and the momentum balance is approximately cyclostrophic and hydrostatic. This is a regime dominated by so-called pancake vortices, with only a weak excitation of internal gravity waves and large values of the local Richardson number, Ri, everywhere. At higher values of R there are successive transitions to (a) overturning motions with local reversals in the density stratification and small or negative values of Ri; (b) growth of a horizontally uniform vertical shear flow component; and (c) growth of a large-scale vertical flow component. Throughout these transitions, pancake vortices continue to dominate the large-scale part of the turbulence, and the gravity wave component remains weak except at small scales.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2003-04-22T07:32:56.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "reynolds number",
      "forced stratified turbulence",
      "successive transitions",
      "uniform vertical shear flow",
      "vertical shear flow component"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. E"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}