{
  "annotation_id": "c171822d-f08f-4ada-b343-f5211fbfa6db",
  "date_created": "2026-03-02T18:01:21.638000Z",
  "date_modified": "2026-03-02T18:01:21.638000Z",
  "file_hash": "6949d122298c5f1309364635fe0f19cbea216ad4d777003ab49f907a45803ee8",
  "private": false,
  "record": {
    "abstract": "We have simulated the temporal evolution of pressure due to capillary and\nviscous forces in two-phase drainage in porous media. We analyze our result in\nlight of macroscopic flow equations for two-phase flow. We also investigate the\neffect of the trapped clusters on the pressure evolution and on the effective\npermeability of the system. We find that the capillary forces play an important\nrole during the displacements for both fast and slow injection rates and both\nwhen the invading fluid is more or less viscous than the defending fluid. The\nsimulations are based on a network simulator modeling two-phase drainage\ndisplacements on a two-dimensional lattice of tubes.",
    "arxiv_id": "physics/9801028",
    "authors": [
      "Eyvind Aker",
      "Knut Jorgen Maloy",
      "Alex Hansen"
    ],
    "categories": [
      "physics.flu-dyn",
      "physics.comp-ph"
    ],
    "doi": "10.1103/PhysRevE.58.2217",
    "title": "Simulating temporal evolution of pressure in two-phase flow in porous   media",
    "url": "https://arxiv.org/abs/physics/9801028"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "99d18adf-d1f5-48f6-ad3b-0c538a46350f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}