{
  "id": "1406.1378",
  "version": "v2",
  "published": "2014-06-05T13:20:25.000Z",
  "updated": "2014-09-17T14:47:20.000Z",
  "title": "An experimental study on turbulent-stripe structure in transitional channel flow",
  "authors": [
    "Takahiro Tsukahara"
  ],
  "comment": "11 pages, 6 figures: A revised and expanded version of a paper that was presented with the same title by S. Hashimoto, A. Hasobe, T. Tsukahara, Y. Kawaguchi, and H. Kawamura, at the Sixth International Symposium on Turbulence, Heat and Mass Transfer, Rome, Italy, 14-18 September 2009",
  "categories": [
    "physics.flu-dyn"
  ],
  "abstract": "Turbulent stripe, which would occur in turbulent channel flows at transitional Reynolds numbers, was studied experimentally by flow visualization using reflective flake particles. In a range of bulk mean Reynolds number Re = 1700-2000, the turbulent stripe was observed to be inclined at angles of 20-30 degree against the streamwise direction, and its streamwise wave length was about 60 times of the channel half width ($\\delta$). The longitudinal streaks with the spanwise spacing of 1.6$\\delta$ were found in the quasi-laminar regions. The critical Reynolds number was Re = 1300. Time traces of the streamwise velocity were measured by laser Doppler velocimetry, revealing similarity to the equilibrium turbulent puff in the transitional pipe flow.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-06-05T13:20:25.000Z",
      "abstract": "Turbulent stripe, which would occur in turbulent channel flows at transitional Reynolds numbers, was studied experimentally by flow visualization using reflective flake particles. In a range of bulk mean Reynolds number Re = 1700-2000, the turbulent stripe was observed to be inclined at angles of 20-30 degree against the streamwise direction, and its streamwise wave length was about 60 times of the channel half width (delta). The longitudinal streaks with the spanwise spacing of 1.6delta were found in the quasi-laminar regions. The critical Reynolds number was Re = 1300. Time traces of the streamwise velocity were measured by laser Doppler velocimetry, revealing similarity to the equilibrium turbulent puff in the transitional pipe flow.",
      "journal": null,
      "doi": null
    },
    {
      "version": "v2",
      "updated": "2014-09-17T14:47:20.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "76F65",
      "76F06"
    ],
    "keywords": [
      "transitional channel flow",
      "turbulent-stripe structure",
      "experimental study",
      "turbulent stripe",
      "bulk mean reynolds number"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014arXiv1406.1378T"
    }
  }
}