{
  "annotation_id": "e842e95a-2e03-4292-b4cd-cfa92227fbff",
  "date_created": "2026-03-02T18:01:17.365000Z",
  "date_modified": "2026-03-02T18:01:17.365000Z",
  "file_hash": "36a69a8537a43a216fba609fc172e2861538d6211f12a172b666441a5f9bf39c",
  "private": false,
  "record": {
    "abstract": "Vortical structures of turbulence, i.e., vortex tubes and sheets, are studied\nusing one-dimensional velocity data obtained in laboratory experiments for duct\nflows and boundary layers at microscale Reynolds numbers from 332 to 1934. We\nstudy the mean velocity profile of intense vortical structures. The\ncontribution from vortex tubes is dominant. The radius scales with the\nKolmogorov length. The circulation velocity scales with the rms velocity\nfluctuation. We also study the spatial distribution of intense vortical\nstructures. The distribution is self-similar over small scales and is random\nover large scales. Since these features are independent of the microscale\nReynolds number and of the configuration for turbulence production, they appear\nto be universal.",
    "arxiv_id": "physics/0703057",
    "authors": [
      "H. Mouri",
      "A. Hori",
      "Y. Kawashima"
    ],
    "categories": [
      "physics.flu-dyn"
    ],
    "doi": "10.1063/1.2720827",
    "journal_ref": "PoF, 19, 055101 [2007]",
    "title": "Laboratory experiments for intense vortical structures in turbulence   velocity fields",
    "url": "https://arxiv.org/abs/physics/0703057"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "59b41c80-96cb-4ec3-b387-8ea25d79fe79",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}