{
  "abstract": "Interfacial turbulence damping is required in Reynolds-averaged simulations of stratified gas--liquid flows when strong interfacial velocity gradients are present. In this work, we develop a target-$ω$ interfacial damping formulation for the low-Reynolds-number Wilcox-type $k$--$ω$ model in a one-field RANS/VOF framework. A gas-side target value of the specific dissipation rate $ω$ is constructed from an effective interfacial wall coordinate determined from the local resolved flow. The constructed target-$ω$ provides a smooth transition between the viscous and logarithmic limits through power-law blending and requires no calibration of model constants against target data. \\textcolor{black}{The formulation is first assessed against three gas-layer DNS cases at $Re_τ\\simeq180$ with different interface velocities. The model reproduces the principal features of the mean velocity, turbulent kinetic energy and Reynolds shear-stress distributions, while showing substantially weaker sensitivity to the near-interface grid resolution than the Egorov-type formulation, although some grid dependence remains on the coarsest mesh. The assessment is then extended to the co-current Fabre stratified-flow experiment at a higher Reynolds number and to the counter-current Stäbler experiment}. In both cases, the present formulation provides generally good predictions of the gas-side mean flow and turbulence statistics without case-specific adjustment. For the Stäbler case, in which the liquid level develops as part of the coupled two-phase solution, the predicted mean liquid depth agrees closely with the measured value. These results indicate that the target-$ω$ formulation provides a consistent interfacial turbulence-damping treatment for resolved large gas--liquid interfaces over the range of conditions considered.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: International Journal of Multiphase Flow 2026",
  "arxiv": "2610.37376",
  "author_total": 7,
  "authors": [
    {
      "name": "Di Wu"
    },
    {
      "name": "Junda Liu"
    },
    {
      "name": "Qiaopeng Wang"
    },
    {
      "name": "Liu Liu"
    },
    {
      "name": "Dongling Wu"
    },
    {
      "name": "Ping Zhou"
    },
    {
      "name": "Pengyu Shi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/588jff7a4qm18.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.37376",
  "fulltext_url": null,
  "id": "588jff7a4qm18",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.37376",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.flu-dyn"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.37376",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-27",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/588jff7a4qm18.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:50Z",
      "native_id": "2610.37376",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.37376"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.flu-dyn",
      "subfield": "fluid-dynamics"
    }
  ],
  "title": "Development and assessment of a target-$ω$ interfacial turbulence-damping model for stratified gas--liquid flow",
  "title_text": "Development and assessment of a target-ω interfacial turbulence-damping model for stratified gas--liquid flow",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:50Z",
  "url": "https://research.draconitic.com/paper/588jff7a4qm18",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1016/j.ijmultiphaseflow.2026.105952",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}