{
  "annotation_id": "a7d0d918-c638-42d4-8b44-8cc5e287c78a",
  "date_created": "2026-03-02T18:01:14.570000Z",
  "date_modified": "2026-03-02T18:01:14.570000Z",
  "file_hash": "42ce11fb2dad8ff2c3254a3a14d16eb8e8a13053f97c965fb720c319a396561a",
  "private": false,
  "record": {
    "abstract": "We derive the pressure tensor and the heat flux to accompany the new\nmacroscopic conservation equations that we developed previously in a\nvolume-based kinetic framework for gas flows. This kinetic description allows\nfor expansion or compression of a fluid element, and is characterized by a flux\nof volume that conventional modelling does not account for. A new convective\nform of transport arises from this new approach, which is due purely to\nmacroscopic expansion or compression. It supplements the conventional transport\nprocesses, which are transport due purely to mass motion (classical convective\ntransport) and transport due purely to random motion (diffusive transport). In\naddition, we show that the thermodynamic parameters of the fluid (temperature\nand pressure) appear with new non-equilibrium contributions that depend on\ndensity variations in the gas. Our new model may be useful for describing gas\nflows that display non-local-thermodynamic-equilibrium (rarefied gas flows),\nflows with relatively large variations of macroscopic properties, and/or highly\ncompressible fluids and flows.",
    "arxiv_id": "physics/0611207",
    "authors": [
      "S. Kokou Dadzie",
      "Jason M. Reese"
    ],
    "categories": [
      "physics.flu-dyn"
    ],
    "title": "A constitutive model for volume-based descriptions of gas flows",
    "url": "https://arxiv.org/abs/physics/0611207"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6c956a48-174d-4d22-93ea-a747ebb8937b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}