{
  "id": "1605.00469",
  "version": "v1",
  "published": "2016-05-02T13:12:24.000Z",
  "updated": "2016-05-02T13:12:24.000Z",
  "title": "Spectra and probability distributions of thermal flux in turbulent Rayleigh-Bénard convection",
  "authors": [
    "Hirdesh K. Pharasi",
    "Deepesh Kumar",
    "Krishna Kumar",
    "Jayanta K. Bhattacharjee"
  ],
  "comment": "22 pages, 6 figures",
  "categories": [
    "physics.flu-dyn"
  ],
  "abstract": "The spectra of turbulent heat flux $\\mathrm{H}(k)$ in Rayleigh-B\\'{e}nard convection with and without uniform rotation are presented. The spectrum $\\mathrm{H}(k)$ scales with wave number $k$ as $\\sim k^{-2}$. The scaling exponent is almost independent of the Taylor number $\\mathrm{Ta}$ and Prandtl number $\\mathrm{Pr}$ for higher values of the reduced Rayleigh number $r$ ($ > 10^3$). The exponent, however, depends on $\\mathrm{Ta}$ and $\\mathrm{Pr}$ for smaller values of $r$ ($<10^3$). The probability distribution functions of the local heat fluxes are non-Gaussian and have exponential tails.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-05-02T13:12:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "turbulent rayleigh-bénard convection",
      "thermal flux",
      "turbulent heat flux",
      "probability distribution functions",
      "local heat fluxes"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 22,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}