71th Annual Meeting of the APS Division of Fluid Dynamics (November 18, 2018 — November 20, 2018)

V0027: Birth of microbubbles in turbulent breaking waves

Authors
  • Wai Hong Ronald Chan, Stanford University
  • Shahab Mirjalili, Stanford University
  • Suhas S Jain, Stanford University
  • Javier Urzay, Stanford University
  • Ali Mani, Stanford University
  • Parviz Moin, Stanford University

Naturally-occurring and ship-generated breaking waves in the ocean generate bubbles of a wide range of sizes. Of these, the smallest microbubbles persist for a long time and have a long-lasting impact on the oceanic environment. In order to investigate the formation of these microbubbles, high-fidelity simulations of each of the stages in this formation are performed. These simulations lend credence to a model pathway for the birth of these microbubbles, involving processes such as collisions between interfaces and air film entrapment.

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