Stable Liquid Jets Bouncing off Soft Gels

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

3 Scopus Citations
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Author(s)

  • Dan Daniel
  • Xi Yao
  • Joanna Aizenberg

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number028006
Journal / PublicationPhysical Review Letters
Volume120
Issue number2
Publication statusPublished - 12 Jan 2018

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.

Citation Format(s)

Stable Liquid Jets Bouncing off Soft Gels. / Daniel, Dan; Yao, Xi; Aizenberg, Joanna.
In: Physical Review Letters, Vol. 120, No. 2, 028006, 12.01.2018.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review