{
  "annotation_id": "64e8ee7f-f70f-4561-aade-cf549716c3bf",
  "date_created": "2026-03-02T18:01:18.554000Z",
  "date_modified": "2026-03-02T18:01:18.554000Z",
  "file_hash": "808c2702f28e682be5a466b4dd784523ec49195e76afbce060f3717b7b682da5",
  "private": false,
  "record": {
    "abstract": "We consider numerically the flow of an electrically conducting fluid in a\ndifferentially rotating spherical shell, in a dipolar magnetic field. For\ninfinitesimal differential rotation the flow consists of a super-rotating\nregion, concentrated on the particular field line C just touching the outer\nsphere, in agreement with previous results. Finite differential rotation\nsuppresses this super-rotation, and pushes it inward, toward the equator of the\ninner sphere. For sufficiently strong differential rotation the outer boundary\nlayer becomes unstable, yielding time-dependent solutions. Adding an overall\nrotation suppresses these instabilities again. The results are in qualitative\nagreement with the DTS liquid sodium experiment.",
    "arxiv_id": "physics/0702228",
    "authors": [
      "Rainer Hollerbach",
      "Elisabeth Canet",
      "Alexandre Fournier"
    ],
    "categories": [
      "physics.geo-ph",
      "physics.flu-dyn"
    ],
    "doi": "10.1016/j.euromechflu.2007.02.002",
    "journal_ref": "European Journal of Mechanics B, 26 (2007) 729-737",
    "title": "Spherical Couette flow in a dipolar magnetic field",
    "url": "https://arxiv.org/abs/physics/0702228"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5e3a8e3e-e94f-4b97-b1d6-4daad9a7f407",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}