75th Annual Meeting of the APS Division of Fluid Dynamics (November 20, 2022 — November 22, 2022)

V0052: Break-up of a bubble in a horizontal rotating flow

  • Majid Rodgar, Ecole Centrale de Lyon, LMFA
  • Hélène Scolan, University Claude Bernard Lyon 1, LMFA
  • Jean-Louis Marié, CNRS, LMFA
  • Delphine Doppler, University Claude Bernard Lyon 1, LMFA
  • Jean-Philippe Matas, University Claude Bernard Lyon 1, LMFA
DOI: https://doi.org/10.1103/APS.DFD.2022.GFM.V0052

The video shows the deformation of a bubble placed in a cylinder filled with water, and rotated about its horizontal axis. The bubble undergoes oscillations in shape, and eventually breaks into two nearly identical fragments.

The mechanism is a mechanism of resonance, when the frequency of the forcing induced by the rotation on the off-centered bubble, and the eigenfrequency of the bubble coincide.

Rodgar et al, Journal of Fluid Mechanics , Volume 925 , 25 October 2021 , A34

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