{
  "annotation_id": "a34ff2f1-bb4e-4a05-a522-dc7a1fbdeec2",
  "date_created": "2026-03-02T18:00:39.378000Z",
  "date_modified": "2026-03-02T18:00:39.378000Z",
  "file_hash": "e81f762c91aefd3388e3ed8dd69c74ef1b1fc7f8805b5755e370674cf73622be",
  "private": false,
  "record": {
    "abstract": "Numerical studies of the effect of a dc magnetic field on dynamo action\n(development of magnetic fields with large spatial scales), due to\nhelically-driven magnetohydrodynamic turbulence, are reported. The apparent\neffect of the dc magnetic field is to suppress the dynamo action, above a\nrelatively low threshold. However, the possibility that the suppression results\nfrom an improper combination of rectangular triply spatially-periodic boundary\nconditions and a uniform dc magnetic field is addressed: heretofore a common\nand convenient computational convention in turbulence investigations. Physical\nreasons for the observed suppression are suggested. Other geometries and\nboundary conditions are offered for which the dynamo action is expected not to\nbe suppressed by the presence of a dc magnetic field component.",
    "arxiv_id": "physics/0202027",
    "authors": [
      "David C. Montgomery",
      "W. H. Matthaeus",
      "L. J. Milano",
      "P. Dmitruk"
    ],
    "categories": [
      "physics.plasm-ph"
    ],
    "doi": "10.1063/1.1462631",
    "title": "Apparent suppression of turbulent magnetic dynamo action by a dc   magnetic field",
    "url": "https://arxiv.org/abs/physics/0202027"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f96b7927-3c6c-4514-bc15-8492f11769b4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}