{
  "abstract": "The Volume-of-Fluid implementation in the \\href{basilisk.fr}{Basilisk} flow solver is employed to study mass transfer after coalescence-induced jump-off of bubbles on solid substrates at four combinations of bubble radius ($R_m=150$ and 25 $μ$m, hydrogen-water properties) and Schmidt number ($\\text{Sc}=210$ and 1). The results show a relatively strong downward entrainment of low-concentration liquid, induced by a rapid movement of the bubble interface at approximately 0.5 to 1 inertio-capillary time units after the moment of coalescence. At $\\text{Sc}=210$, this leads to a highly local increase of the Sherwood number at a core region (roughly an area of radius $R_m/2$) below the south pole of the merged bubble, which persists long after the bubble departure due to the slow diffusion at large $\\text{Sc}$. The enhancement factor of the Sherwood number is highly dependent on the state of the mass-transfer boundary layer at the moment of coalescence, increasing with smaller boundary layer thicknesses. Shortly after the jump-off, the velocity of the bubble is considerably damped and rapidly approaches its free-rise terminal velocity. The effect of micro-convection on the wall mass transfer coefficient at this stage is insignificant when isolated, similar to what is reported in the literature for purely buoyancy-driven bubble rise -- but slightly stronger.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.07232",
  "author_total": 4,
  "authors": [
    {
      "name": "Zahra Saadat"
    },
    {
      "name": "Michele Cattani"
    },
    {
      "name": "Amin Soltani"
    },
    {
      "name": "Pourya Forooghi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9k4j2j22jvjm0.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.07232",
  "fulltext_url": null,
  "id": "9k4j2j22jvjm0",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.07232",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.flu-dyn"
    ],
    [
      "openalex",
      "2206|Fluid Dynamics and Heat Transfer"
    ]
  ],
  "openalex": "W7212080065",
  "pdf_url": "https://arxiv.org/pdf/2609.07232",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-07",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9k4j2j22jvjm0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2609.07232",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.07232"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.flu-dyn",
      "subfield": "fluid-dynamics"
    }
  ],
  "title": "Micro-convection mass transfer following bubble coalescence on a solid wall",
  "title_text": "Micro-convection mass transfer following bubble coalescence on a solid wall",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:48Z",
  "url": "https://research.draconitic.com/paper/9k4j2j22jvjm0",
  "venue": "arXiv",
  "versions": []
}