Solubility enhanced surfactant-induced flow in air-liquid-air sheets
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866911736100028416 |
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| author | Eshima, Jun Aurégan, Tristan Villermaux, Emmanuel Stone, Howard A. Deike, Luc |
| author_facet | Eshima, Jun Aurégan, Tristan Villermaux, Emmanuel Stone, Howard A. Deike, Luc |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2606_00921 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Solubility enhanced surfactant-induced flow in air-liquid-air sheets Eshima, Jun Aurégan, Tristan Villermaux, Emmanuel Stone, Howard A. Deike, Luc Fluid Dynamics Soft Condensed Matter 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. |
| title | Solubility enhanced surfactant-induced flow in air-liquid-air sheets |
| topic | Fluid Dynamics Soft Condensed Matter |
| url | https://arxiv.org/abs/2606.00921 |