78th Annual Meeting of the APS Division of Fluid Dynamics (Nov 23 — 25, 2025)
P026: Dynamics of bubble-bursting drops
Bursting droplets and aerosols are a significant source of waterborne contaminants (including microplastics, PFAS, bacteria, and viruses) entering the atmosphere. The visualization above shows bubble-bursting drops from a bubble plume generated by an air stone at a flow rate of 0.8 liters per minute. Two sets of images were captured: one on the air side (an overlay of thirty sequential images) and one on the water side (an overlay of three images). The images were analyzed to develop a predictive model for contaminant transport based on bubble and droplet characteristics. The dimensionless parameters from two groups show a relationship among Fr, We, and Bo: Frd ∝ (BobWeb)-3/5 where subscripts b and d represent bubble and drop, respectively.
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