{
  "id": "2403.07946",
  "version": "v1",
  "published": "2024-03-11T10:00:00.000Z",
  "updated": "2024-03-11T10:00:00.000Z",
  "title": "Burns turbulent dispersion considers the dispersed phase as a passive scalar",
  "authors": [
    "Corentin Reiss"
  ],
  "categories": [
    "physics.flu-dyn"
  ],
  "abstract": "The Burns turbulent dispersion force is the most commonly used turbulent dispersion in the twofluid RANS bubbly-flow literature. However, its derivation is based on a series of hypothesis that are difficult to justify in industrial flows. It is shown that in low-void fraction vertical pipe flow, the Burns turbulent dispersion formulation is equivalent to considering the radial movement of the gas phase like a passive scalar that follows turbulent eddies. This is not apparent in the derivation of the force. As bubbles in pressurized water reactor (PWR) conditions have a low Stokes number ($\\sim$ 10--1), considering bubbles are transported by turbulence is a good approximation for bubble dispersion in pipe flow. Therefore, the Burns turbulent dispersion force is appropriate to represent bubble dispersion in low-void fraction PWR flows.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-03-11T10:00:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "passive scalar",
      "burns turbulent dispersion force",
      "dispersed phase",
      "twofluid rans bubbly-flow literature",
      "burns turbulent dispersion formulation"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}