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Assistant Professor of Mechanical Engineering
When a bubble bursts at an interface, the capillary waves create an intriguing
cusp, which is responsible for an upward jet that can break into droplets. This
jet drop phenomena is relevant to a variety of topics including the transport of
respiratory pathogens and cloud-forming marine aerosols. The first part of this
talk addresses how gravity and viscosity can inhibit jet drop production. The
dominant role of gravity appears to be its role in the setting the bubble shape.
The second part of the talk explores the size of the smallest aerosols produced.
Given that the size of these droplets may be smaller than the wavelength of
visible light, we are indeed searching – both experimentally and numerically –
for invisible droplets.
Wednesday, February 15th
Pizzas start at 5:20 pm
Pierce Hall 301