Evaporation dynamics of water droplets on superhydrophobic nanograss surfaces

Ahmed Aldhaleai,Faheem Khan,Thomas Thundat,Peichun Amy Tsai

International Journal of Heat and Mass Transfer（2020）

引用 20|浏览8

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摘要

•Wetting of evaporating drops on superhydrophobic Nanograss surfaces is elucidated.•Sharp nanograss greatly increases the duration of gas-trapping state with a CCA mode.•Small droplets evaporate with a CCA mode, followed by a mixed mode.•Large droplets exhibit intriguing stick-slip motions of the contact line.•Evaporative cooling model predicts the evaporation rate on the SH nanograss well.

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关键词

Evaporation,Nanograss,Superhydrophobic surfaces,Stick-slip motion,Contact angle,Cassie-Baxter state

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