{
  "annotation_id": "04db2c3a-74d1-43e8-b266-54f3a9173cfe",
  "date_created": "2026-02-17T05:53:23.618000Z",
  "date_modified": "2026-02-17T05:53:23.618000Z",
  "file_hash": "461f76926be9363236acaeda2e0e726bc54fb55c29d5f444441f98b4846e85b4",
  "private": false,
  "record": {
    "abstract": "Despite the significant role of turbomachinery in fluid-based energy transfer, precise simulation of rotating solid objects with complex geometry is a challenging task. In the present study, the volume penalization method (VPM) is combined with multiple reference frame (MRF) and sliding mesh (SLM), respectively, so as to develop immersed-boundary approaches for simulating flows around a rotating solid. The level-set function is adopted to represent arbitrary geometries embedded in Cartesian grids. The VPM body-forcing terms in the momentum equation are proposed for MRF and SLM, respectively, so as to build unified governing equations for both fluid and solid regions. The flows around a rotating cuboid under various rotating speeds are simulated by the present schemes, namely, VPM with MRF, and VPM with SLM, and compared to corresponding simulations by the body-fitted method (BFM). The results suggest the relative deviations of predicted pressure drop and torque between the present VPM and BFM are around 5%, demonstrating the validity of the present VPM.",
    "arxiv_id": "2601.10230",
    "authors": [
      "Ming Liu",
      "Yosuke Hasegawa"
    ],
    "categories": [
      "physics.flu-dyn",
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Volume penalization method for simulating flows around a rotating solid with multiple reference frame and sliding mesh",
    "url": "https://arxiv.org/abs/2601.10230",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4d336f0d-908d-48e1-81c3-6c35a3ed96ae",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}