{
  "annotation_id": "8e7a4929-9d32-46fd-bcb8-dfde8ecc1e99",
  "date_created": "2026-03-02T18:01:03.032000Z",
  "date_modified": "2026-03-02T18:01:03.032000Z",
  "file_hash": "13da01a7088564eb5f85f4938eaa0d5f0656fbfdbef6e2e6be18afb6de20faf6",
  "private": false,
  "record": {
    "abstract": "We applied to an open flow a proper orthogonal decomposition (pod) technique,\non 2D snapshots of the instantaneous velocity field, to reveal the spatial\ncoherent structures responsible of the self-sustained oscillations observed in\nthe spectral distribution of time series. We applied the technique to 2D planes\nout of 3D direct numerical simulations on an open cavity flow. The process can\neasily be implemented on usual personal computers, and might bring deep\ninsights on the relation between spatial events and temporal signature in (both\nnumerical or experimental) open flows.",
    "arxiv_id": "physics/0510029",
    "authors": [
      "L. R. Pastur",
      "F. Lusseyran",
      "Y. Fraigneau",
      "B. Podvin"
    ],
    "categories": [
      "physics.class-ph"
    ],
    "doi": "10.1103/PhysRevE.72.065301",
    "journal_ref": "Physical Review E 72 (2005) 065301(R)",
    "title": "Determining the Spectral Signature of Spatial Coherent Structures",
    "url": "https://arxiv.org/abs/physics/0510029"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2ee65415-a052-4c47-b6bc-ca3e6a56f200",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}