{
  "annotation_id": "69bf25b5-2b49-440e-bbc5-1348ef2dc041",
  "date_created": "2026-03-02T18:00:39.780000Z",
  "date_modified": "2026-03-02T18:00:39.780000Z",
  "file_hash": "c81160ce9c7d0588ce4e9b750aa4d265d03cc0b95c16e10f193b0646a8b85f13",
  "private": false,
  "record": {
    "abstract": "DNS and laboratory experiments show that the spatial distribution of\nstraining stagnation points in homogeneous isotropic 3D turbulence has a\nfractal structure with dimension D_s = 2. In Kinematic Simulations the time\nexponent gamma in Richardson\u0027s law and the fractal dimension D_s are related by\ngamma = 6/D_s. The Richardson constant is found to be an increasing function of\nthe number of straining stagnation points in agreement with pair duffusion\noccuring in bursts when pairs meet such points in the flow.",
    "arxiv_id": "physics/0207108",
    "authors": [
      "Javier Davila",
      "Christos Vassilicos"
    ],
    "categories": [
      "physics.flu-dyn",
      "physics.ao-ph"
    ],
    "doi": "10.1103/PhysRevLett.91.144501",
    "title": "Richardson\u0027s pair diffusion and the stagnation point structure of   turbulence",
    "url": "https://arxiv.org/abs/physics/0207108"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1803d95f-39be-426e-ba65-d74f33ab88e3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}