Stable Liquid Jets Bouncing off Soft Gels

Dan Daniel, Xi Yao, Joanna Aizenberg

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A liquid jet can stably bounce off a sufficiently soft gel by following the contour of the dimple created upon impact. This new phenomenon is insensitive to the wetting properties of the gels and was observed for different liquids over a wide range of surface tensions, γ=24-72 mN/m. In contrast, other jet rebound phenomena are typically sensitive to γ: only a high γ jet rebounds off a hard solid (e.g. superhydrophobic surface) and only a low γ jet bounces off a liquid bath. This is because an air layer must be stabilized between the two interfaces. For a soft gel, no air layer is necessary and the jet rebound remains stable even when there is direct liquid-gel contact.
Original languageEnglish (US)
JournalPhysical Review Letters
Volume120
Issue number2
DOIs
StatePublished - Jan 12 2018
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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