{
  "annotation_id": "42367343-1232-4877-8e55-d2c38fccee74",
  "date_created": "2026-03-02T18:00:46.910000Z",
  "date_modified": "2026-03-02T18:00:46.910000Z",
  "file_hash": "208c0035fdc58350888a772b07f61f10bcddf0ece07ec86f73a4dead3e5af1eb",
  "private": false,
  "record": {
    "abstract": "The probability density function of single-point velocity fluctuations in\nturbulence is studied systematically using Fourier coefficients in the\nenergy-containing range. In ideal turbulence where energy-containing motions\nare random and independent, the Fourier coefficients tend to Gaussian and\nindependent of each other. Velocity fluctuations accordingly tend to Gaussian.\nHowever, if energy-containing motions are intermittent or contaminated with\nbounded-amplitude motions such as wavy wakes, the Fourier coefficients tend to\nnon-Gaussian and dependent of each other. Velocity fluctuations accordingly\ntend to non-Gaussian. These situations are found in our experiment of a\nrough-wall boundary layer.",
    "arxiv_id": "physics/0307110",
    "authors": [
      "H. Mouri",
      "M. Takaoka",
      "A. Hori",
      "Y. Kawashima"
    ],
    "categories": [
      "physics.flu-dyn"
    ],
    "doi": "10.1103/PhysRevE.68.036311",
    "journal_ref": "PRE, 68, 036311 [2003]",
    "title": "Probability density function of turbulent velocity fluctuations in   rough-wall boundary layer",
    "url": "https://arxiv.org/abs/physics/0307110"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5a7e0f75-1ef9-4d0a-a35e-07790f28cff3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}