{
  "id": "1702.02832",
  "version": "v1",
  "published": "2017-02-09T13:48:36.000Z",
  "updated": "2017-02-09T13:48:36.000Z",
  "title": "Growth dynamics of turbulent spots in plane Couette flow",
  "authors": [
    "Marie Couliou",
    "Romain Monchaux"
  ],
  "categories": [
    "physics.flu-dyn"
  ],
  "abstract": "We experimentally and numerically investigate the temporal aspects of turbulent spots spreading in a plane Couette flow for transitional Reynolds numbers between 300 and 450. Spot growth rate, spot advection rate and large-scale flow intensity are measured as a function of time and Reynolds number. All these quantities show similar dynamics clarifying the role played by large-scale flows in the advection of the turbulent spot. The contributions of each possible growth mechanism: growth induced by large scale advection or growth by destabilization, are discussed for the different stages of the spot growth. A scenario which gathers all these elements is providing a better understanding of the growth dynamics of turbulent spots in plane Couette flow that should possibly apply to other extended shear flows.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-02-09T13:48:36.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "plane couette flow",
      "turbulent spot",
      "growth dynamics",
      "spot advection rate",
      "large-scale flow intensity"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}