Why do bubbles in Guinness sink

  title={Why do bubbles in Guinness sink},
  author={E. S. Benilov and C. Cummins and W. Lee},
  journal={American Journal of Physics},
  • E. S. Benilov, C. Cummins, W. Lee
  • Published 2013
  • Physics
  • American Journal of Physics
  • Stout beers show the counter-intuitive phenomena of sinking bubbles, while the beer is settling. Previous research suggests that this phenomenon is due to the small size of the bubbles in these beers and the presence of a circulatory current, directed downwards near the side of the wall and upwards in the interior of the glass. The mechanism by which such a circulation is established and the conditions under which it will occur has not been clarified. In this paper, we use simulations and… CONTINUE READING

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