{
  "annotation_id": "70666e7e-02d6-4d57-86bb-968b70061225",
  "date_created": "2026-03-02T18:01:17.184000Z",
  "date_modified": "2026-03-02T18:01:17.184000Z",
  "file_hash": "7854f06dda7349650735ac0d393349d2eba2a4617c1004733c12b74085bfc40a",
  "private": false,
  "record": {
    "abstract": "We report a new method to measure the velocity of a fluid in the vicinity of\na wall. The method, that we call Particle-Shadow Tracking (PST), simply\nconsists in seeding the fluid with a small number of fine tracer particles of\ndensity close to that of the fluid. The position of each particle and of its\nshadow on the wall are then tracked simultaneously, allowing one to accurately\ndetermine the distance separating tracers from the wall and therefore to\nextract the velocity field. We present an application of the method to the\ndetermination of the velocity profile inside a laminar density current flowing\nalong an inclined plane.",
    "arxiv_id": "physics/0701131",
    "authors": [
      "Pierre Lancien",
      "Eric Lajeunesse",
      "Fran\u00e7ois M\u00e9tivier"
    ],
    "categories": [
      "physics.flu-dyn",
      "physics.class-ph"
    ],
    "doi": "10.1007/s00348-007-0260-z",
    "title": "Near-wall velocity measurements by Particle-Shadow-Tracking",
    "url": "https://arxiv.org/abs/physics/0701131"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f1bccb90-4131-485f-9137-f76a550c6585",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}