{
  "id": "1808.06479",
  "version": "v1",
  "published": "2018-08-20T14:50:57.000Z",
  "updated": "2018-08-20T14:50:57.000Z",
  "title": "Bifurcations to turbulence in transitional channel flow",
  "authors": [
    "Masaki Shimizu",
    "Paul Manneville"
  ],
  "comment": "6 pages, 4 figures ; Supplemental material: 9 pages, 7 figures, 7 videos. Resolutions of figures and videos are reduced",
  "categories": [
    "physics.flu-dyn"
  ],
  "abstract": "On its way to/from turbulence, channel flow displays a fluctuating pattern of laminar domains and turbulent bands. By direct numerical simulation we study the observed inconsistency between turbulence decay according a two-dimensional directed-percolation scenario, and the presence of localized turbulent bands below its threshold. We point out a bifurcation restoring the statistical spanwise propagation symmetry of these turbulent bands, and show that the percolation-like properties are only retrieved somewhat above that transition, which questions the issue of universality vs. specificity.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-08-20T14:50:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "transitional channel flow",
      "bifurcation",
      "way to/from turbulence",
      "channel flow displays",
      "two-dimensional directed-percolation scenario"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}