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PreprintCC BY 4.0arXiv

Solubility enhanced surfactant-induced flow in air-liquid-air sheets

  • Jun Eshima
  • Tristan Aurégan
  • Emmanuel Villermaux
  • Howard A. Stone
  • Luc Deike
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Abstract

Liquid interfaces appear throughout nature and engineering and are typically contaminated by surface active agents (surfactants), which are characterized by a wide range of solubility. We demonstrate that solubility enhances by an order of magnitude surfactant-induced flow in air-liquid-air films, in contrast to previously studied geometries where solubility dampens the flow. The enhancement is described by a single parameter comparing the depletion length to the film thickness. Our experiments are well described by an asymptotic theory of the Navier-Stokes equations with surfactant kinetics.

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Cite

BibTeXRIS
BibTeX
@misc{eshima2026solubility,
  title = {{Solubility enhanced surfactant-induced flow in air-liquid-air sheets}},
  author = {Jun Eshima and Tristan Aurégan and Emmanuel Villermaux and Howard A. Stone and Luc Deike},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2606.00921},
  eprint = {2606.00921},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.00921},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Solubility enhanced surfactant-induced flow in air-liquid-air sheets
AU  - Jun Eshima
AU  - Tristan Aurégan
AU  - Emmanuel Villermaux
AU  - Howard A. Stone
AU  - Luc Deike
PY  - 2026
DA  - 2026/09/01
PB  - arXiv
DO  - 10.48550/arxiv.2606.00921
UR  - https://arxiv.org/abs/2606.00921
AB  - Liquid interfaces appear throughout nature and engineering and are typically contaminated by surface active agents (surfactants), which are characterized by a wide range of solubility. We demonstrate that solubility enhances by an order of magnitude surfactant-induced flow in air-liquid-air films, in contrast to previously studied geometries where solubility dampens the flow. The enhancement is described by a single parameter comparing the depletion length to the film thickness. Our experiments are well described by an asymptotic theory of the Navier-Stokes equations with surfactant kinetics.
ER  -