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Spray Generation By Bubbles Bursting

Sreeta Basu

Advisors: Luc Deike and Daniel Shaw

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Bursting Bubbles as a Mechanism of Transport

  • Bursting surface bubbles can transfer chemical and organic material from water bodies to the atmosphere by creating film drops
  • Important for global climate modeling
  • Can carry pathogens or contaminants

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Lhuissier, H., & Villermaux, E. (2012). Bursting bubble aerosols. Journal of Fluid Mechanics, 696, 5-44.

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Experimental Set-Up

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Isolating Parameters to Model Drop Characteristics

Parameters Varied

  • Liquid
    • Deionized water
    • Synthetic seawater
    • Water-glycerol mixture
  • Surfactant concentration
    • SDS
    • Triton X-100
  • Temperature
    • 2.5°C - 40°C
  • Bubble Size:
    • 1 mm – 2 cm

Measured Effects

  • Number of film drops
  • Film drop size
  • Film drop trajectory

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Mean Drop Size: 64.1742(μm)

Mean Drop Size: 70.52(μm)

Mean Drop Size: 101.333 (μm)

Mean Drop Size: 158.783(μm)

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Mean Drop Size: 120.1146(μm)

Mean Drop Size: 77.05769(μm)

Mean Drop Size: 76.18206566 (μm)

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Effects of Parameters on Bubble Dynamics

  • Exact effects still to be determined!

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  • BUT we know that
    • Increasing the cap radii increased average drop size
    • Increasing the lifetime decreased average drop size

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    • With more data, we think we can find a more robust equation for modeling the drop size given parameters of the original bubble.

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