{
  "annotation_id": "2c832b2b-c2e6-4016-90fd-4e60d711b8b9",
  "date_created": "2026-03-02T18:00:32.495000Z",
  "date_modified": "2026-03-02T18:00:32.495000Z",
  "file_hash": "ffe992b235ca4f010d9b862f28e85f2ac3148bd1e311100184c00e78f26ce962",
  "private": false,
  "record": {
    "abstract": "We present numerical simulation of 2D turbulent flow using a new model for\nthe subgrid scales which are computed using a dynamic equation linking the\nsubgrid scales with the resolved velocity. This equation is not postulated, but\nderived from the constitutive equations under the assumption that the\nnon-linear interactions of subgrid scales between themselves are equivalent to\na turbulent viscosity.The performances of our model are compared with Direct\nNumerical Simulations of decaying and forced turbulence. For a same resolution,\nnumerical simulations using our model allow for a significant reduction of the\ncomputational time (of the order of 100 in the case we consider), and allow the\nachievement of significantly larger Reynolds number than the direct method.",
    "arxiv_id": "physics/0101037",
    "authors": [
      "J. -P. Laval",
      "B. Dubrulle",
      "S. Nazarenko"
    ],
    "categories": [
      "physics.flu-dyn",
      "nlin.CD",
      "physics.ao-ph",
      "physics.comp-ph"
    ],
    "doi": "10.1016/j.jcp.2003.10.022",
    "journal_ref": "Journal of Computational Physics, vol 196 (1), pp 184-207 (2004)",
    "title": "Fast Numerical simulations of 2D turbulence using a dynamic model for   Subgrid Motions",
    "url": "https://arxiv.org/abs/physics/0101037"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d1f60570-8405-4e18-bff5-c1214c1fcf0a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}