Creation of prompt and thin-sheet splashing by varying surface roughness or increasing air pressure

Andrzej Latka*, Ariana Strandburg-Peshkin, Michelle M. Driscoll, Cacey S. Stevens, Sidney R. Nagel

*Corresponding author for this work

Research output: Contribution to journalArticle

79 Scopus citations

Abstract

A liquid drop impacting a solid surface may splash either by emitting a thin liquid sheet that subsequently breaks apart or by promptly ejecting droplets from the advancing liquid-solid contact line. Using high-speed imaging, we show that surface roughness and air pressure influence both mechanisms. Roughness inhibits thin-sheet formation even though it also increases prompt splashing at the advancing contact line. If the air pressure is lowered, droplet ejection is suppressed not only during thin-sheet formation but also for prompt splashing.

Original languageEnglish (US)
Article number054501
JournalPhysical review letters
Volume109
Issue number5
DOIs
StatePublished - Jul 31 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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