{
  "id": "1207.6576",
  "version": "v1",
  "published": "2012-07-27T15:45:47.000Z",
  "updated": "2012-07-27T15:45:47.000Z",
  "title": "From linear stability analysis to three-dimensional organisation in an incompressible open cavity flow",
  "authors": [
    "L. R. Pastur",
    "Y. Fraigneau",
    "F. Lusseyran",
    "J. Basley"
  ],
  "comment": "9 pages",
  "categories": [
    "physics.flu-dyn"
  ],
  "abstract": "Three-dimensional direct numerical simulations of an incompressible open square cavity flow are conducted. Features of the permanent (non-linear) regime together with the linear stability analysis of a two-dimensional steady base flow are discussed. Spanwise boundary conditions are periodic and control parameters set such that the shear layer is stable against Kelvin-Helmholtz modes. Three branches of destabilising modes are found. The most destabilising branch is associated with steady modes, over a finite range of spanwise wavenumbers. The two other branches provide unsteady modes. Features of each branches are recovered in the permanent regime: wavelength of the most powerful spanwise Fourier mode, swaying phenomenon, angular frequencies, indicating that modes of each branches are selected and interact in the permanent flow.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-07-27T15:45:47.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "linear stability analysis",
      "incompressible open cavity flow",
      "three-dimensional organisation",
      "incompressible open square cavity flow",
      "two-dimensional steady base flow"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012arXiv1207.6576P"
    }
  }
}