Aerosol Generation from Film Dynamics During Bubble Bursting

Chun, SungGyu

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https://hdl.handle.net/2142/114224 Copy

Description

Title

Aerosol Generation from Film Dynamics During Bubble Bursting

Author(s)

Chun, SungGyu

Issue Date

2022

Keyword(s)

• Mechanical Science
• Engineering

Abstract

Covering more than 70% of the Earth’s surface, the oceans are critical to generate sea spray aerosol, as one of the most abundant forms of atmospheric aerosol, influencing climate changes and human health. Film drops produced from bursting bubble on the sea surface microlayer can be enriched with micro-organisms or bacteria and transported to the atmosphere. Once a bubble is created in a bulk solution, the bubble rises with small particulates to the surface and forms a spherical cap at the surface. The shape of the cap remains constant before the bubble spontaneously ruptures, often fragmenting into film droplets as shown in the picture. The concentration of the particulates in the film drops is higher than the bulk concentration, transporting enriched particulates to the atmosphere. Investigating bubble bursting behavior paves the way to predict the transmission of small particulates, such as microplastics, bacteria, or even viruses from sea surface and other forms of water sources.

Type of Resource

• Text
• Image

Language

eng

Permalink

http://hdl.handle.net/2142/114224

Copyright and License Information

Copyright 2022 SungGyu Chun

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