Mon September 14th 2015
16:00 – 17:00
ZH286
Seminar Evolution of Water-Air Interfaces on Submerged Surfaces with Microstructures
Pengyu Lv

Details:

Superhydrophobicity on structured surfaces is frequently achieved via the maintenance of water-air interfaces adjacent to the trapped air pockets. These interfaces, however, are subject to instabilities due to the Cassie-Baxter-to-Wenzel transition and total wetting. The current work focuses on the evolution of water-air interfaces on submerged microstructures under three influence factors, namely, hydrostatic pressure, air diffusion and fluid flow. The variations of the positions and configurations of water-air interfaces are in situ examined in real time using the laser scan confocal microscopy. The whole evolution process of the liquid-air interfaces is presented experimentally and the basic mechanisms governing the evolution process are revealed.
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The 10th Complex Motion in Fluids 2020
Max Planck Gesellschaft
MCEC
Twente
Centre for Scientific Computing
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