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Journal of Fluid Mechanics Webinar Series: David Quere, ESPCI-Paris

Category
JFM Webinar Series
Date

Speaker: David Quéré, ESPCI-Paris and École Polytechnique, France

Date/Time: Friday 19th February, 2021. 4:00 pm GMT/11am EST

Title: Acrobatics of non-stick droplets

Abstract: Making drops non-wetting increases dramatically their mobility, compared to the situations we are used to. We'll describe a few consequences of this statement, with a particular focus on jumping droplets: two non-stick drops can transfer their surface energy into kinetic energy when they merge, and thus can jump from their substrate. The materials achieving such a property might be antifogging, since condensing water is likely to be evacuated without external source of energy. We’ll discuss to what extent this optimistic view is science-fiction - wearing glasses at the time of covid, we realize how non-antifogging common materials are...