Droplet spreading using flow frequency vibration

James Whitehill, Adrian Neild, Tuck Ng, Steven Martyn, Jonathan Chong

Research output: Contribution to journalArticleResearchpeer-review

17 Citations (Scopus)

Abstract

Low frequency actuation is known to cause the oscillatory movement of contact lines in droplets. Here, the linear relation between contact line location and oscillation is broken when high amplitudes of actuation are used to accomplish spreading. This spreading is able to occur on widely used surfaces, and can cause the contact angle to fall well below receding angles over the whole actuation cycle. This mechanism portends use in applications that require the imaging of multiple droplets evenly spread across a defined area and for adjacent droplets to spread, meet and mix via acoustic streaming.
Original languageEnglish
Pages (from-to)1 - 3
Number of pages3
JournalApplied Physics Letters
Volume98
Issue number13
DOIs
Publication statusPublished - 2011

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