Droplet impact dynamics on hydrophobic and slippery liquid-infused porous surfaces controlled by propagating surface acoustic waves

Haworth, Luke, Hosseini Biroun, Seyedmehdi, Agrawal, Prashant, Torun, Hamdi, Orme, Bethany, Rahmati, Mohammad and Fu, Richard (2021) Droplet impact dynamics on hydrophobic and slippery liquid-infused porous surfaces controlled by propagating surface acoustic waves. In: Acoustofluidics 2021, 26th - 27th August 2021, Online. (In Press)

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Abstract

Controlling droplet impact on different solid surfaces is an essential topic in developing diverse types of engineering surfaces. Slippery liquid infused porous surfaces (SLIPs) has recently been used in self-cleaning 1–3 and anti-icing surfaces . This paper introduces a new method to actively control the droplet impact on SLIPs surfaces using surface acoustic wave (SAW) technology. To do that, we designed and fabricated SLIPs on ZnO/Al thin film SAW devices. Our experimental results showed that by applying a SAW wave, the droplets' spreading, and retractions are altered, leading to a change in droplet impact regime.

Item Type: Conference or Workshop Item (Paper)
Subjects: H100 General Engineering
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Rachel Branson
Date Deposited: 06 Sep 2021 14:58
Last Modified: 06 Sep 2021 14:58
URI: http://nrl.northumbria.ac.uk/id/eprint/47083

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