Dynamics of Nanodroplets on Vibrating Surfaces

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Abstract

We report the results of molecular dynamics investigations into the behaviour of nanoscale water droplets on surfaces subjected to cyclic-frequency normal vibration. Our results show, for the first time, a range of vibration-induced phenomena, including the existence of the following different regimes: evaporation, droplet oscillation, and droplet lift-off. We also describe the effect of different surface wettabilities on evaporation. The outcomes of this work can be utilised in the design of future nano-engineered technologies that employ surface/bulk acoustic waves, such as water-based cooling systems for high-heat-generating processor chips, by tuning the vibration frequency and amplitude, as well as the surface wettability, to obtain the desired performance.
Original languageEnglish
Pages (from-to)11898–11904
JournalLangmuir
Volume34
Issue number39
Early online date21 Aug 2018
DOIs
Publication statusPublished - 2 Oct 2018

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