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Communication Dans Un Congrès Année : 2016

Bursting of dilute emulsion-based liquid sheets driven by a Marangoni effect

Clara Vernay
  • Fonction : Auteur
Laurence Ramos
Christian Ligoure
  • Fonction : Auteur
  • PersonId : 874073

Résumé

We study the destabilization mechanism of thin liquid sheets expanding in air and show that dilute oilin- water emulsion-based sheets disintegrate through the nucleation and growth of holes that perforate the sheet [1]. The velocity and thickness fields of the sheet outside the holes are not perturbed by holes and hole opening follows a Taylor-Culick law. We find that a pre-hole, which widens and thins out the sheet with time, systematically precedes the hole nucleation. The growth dynamics of the pre-hole follows the law theoretically predicted for a liquid spreading on another liquid of higher surface tension due to Marangoni stresses. Classical Marangoni spreading experiments quantitatively corroborate our findings.
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Dates et versions

hal-01370655 , version 1 (23-09-2016)

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  • HAL Id : hal-01370655 , version 1

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Clara Vernay, Laurence Ramos, Christian Ligoure. Bursting of dilute emulsion-based liquid sheets driven by a Marangoni effect. International Soft Matter Conference 2016, Sep 2016, Grenoble, France. ⟨hal-01370655⟩
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