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Intensive wave breaking, under the wind forcing, leads to air entrainment and subsequent bubble generation which strong effect on the heat, momentum, and gas transfer between the ocean and atmosphere. This investigation is concerned to the laboratory experiments and Direct Numerical Simulations (DNS) of the air bubble rising in the still water. Rapid bubble rising was investigated by high-speed filming and using special algorithms of image processing to obtain its shape. The DNS process was carried out utilized the Volume of Fluid (VoF) algorithm realized in the open access Basilisks software package. It was possible to achieve good agreement between the results of calculations and measurements. It was shown that bubble’s shape evolution strongly depends on the initial shape.

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Investigation of the Dynamics of the Shape of a Rising Bubble on the Surface

  • 会议论文

  • 发表日期：

    2025年

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  • A. N. Zotova,
  • D. A. Sergeev,
  • M. I. Vdovin

摘要

Intensive wave breaking, under the wind forcing, leads to air entrainment and subsequent bubble generation which strong effect on the heat, momentum, and gas transfer between the ocean and atmosphere. This investigation is concerned to the laboratory experiments and Direct Numerical Simulations (DNS) of the air bubble rising in the still water. Rapid bubble rising was investigated by high-speed filming and using special algorithms of image processing to obtain its shape. The DNS process was carried out utilized the Volume of Fluid (VoF) algorithm realized in the open access Basilisks software package. It was possible to achieve good agreement between the results of calculations and measurements. It was shown that bubble’s shape evolution strongly depends on the initial shape.