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Universal non-monotonic drainage in large bare viscous bubbles

Author

Listed:
  • Casey Bartlett

    (Boston University)

  • Alexandros T. Oratis

    (Boston University)

  • Matthieu Santin

    (Boston University)

  • James C. Bird

    (Boston University)

Abstract

Bubbles will rest at the surface of a liquid bath until their spherical cap drains sufficiently to spontaneously rupture. For large film caps, the memory of initial conditions is believed to be erased due to a visco-gravitational flow, whose velocity increases from the top of the bubble to its base. Consequently, the film thickness has been calculated to be relatively uniform as it thins, regardless of whether the drainage is regulated by shear or elongation. Here, we demonstrate that for large bare bubbles, the film thickness is highly nonuniform throughout drainage, spanning orders of magnitude from top to base. We link the film thickness profile to a universal non-monotonic drainage flow that depends on the bubble thinning rate. These results highlight an unexpected coupling between drainage velocity and bubble thickness profiles and provide critical insight needed to understand the retraction and breakup dynamics of these bubbles upon rupture.

Suggested Citation

  • Casey Bartlett & Alexandros T. Oratis & Matthieu Santin & James C. Bird, 2023. "Universal non-monotonic drainage in large bare viscous bubbles," Nature Communications, Nature, vol. 14(1), pages 1-7, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36397-0
    DOI: 10.1038/s41467-023-36397-0
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    References listed on IDEAS

    as
    1. James C. Bird & Riƫlle de Ruiter & Laurent Courbin & Howard A. Stone, 2010. "Daughter bubble cascades produced by folding of ruptured thin films," Nature, Nature, vol. 465(7299), pages 759-762, June.
    2. A. Lee & P. -T. Brun & J. Marthelot & G. Balestra & F. Gallaire & P. M. Reis, 2016. "Fabrication of slender elastic shells by the coating of curved surfaces," Nature Communications, Nature, vol. 7(1), pages 1-7, September.
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