Symmetry breaking in drop bouncing on curved surfaces

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

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Author(s)

  • Yahua Liu
  • Matthew Andrew
  • Jing Li
  • Julia M. Yeomans
  • Zuankai Wang

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Detail(s)

Original languageEnglish
Article number10034
Journal / PublicationNature Communications
Volume6
Online published25 Nov 2015
Publication statusPublished - 2015

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Abstract

The impact of liquid drops on solid surfaces is ubiquitous in nature, and of practical importance in many industrial processes. A drop hitting a flat surface retains a circular symmetry throughout the impact process. Here we show that a drop impinging on Echevaria leaves exhibits asymmetric bouncing dynamics with distinct spreading and retraction along two perpendicular directions. This is a direct consequence of the cylindrical leaves that have a convex/concave architecture of size comparable to the drop. Systematic experimental investigations on mimetic surfaces and lattice Boltzmann simulations reveal that this novel phenomenon results from an asymmetric momentum and mass distribution that allows for preferential fluid pumping around the drop rim. The asymmetry of the bouncing leads to ∼40% reduction in contact time.

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Citation Format(s)

Symmetry breaking in drop bouncing on curved surfaces. / Liu, Yahua; Andrew, Matthew; Li, Jing et al.
In: Nature Communications, Vol. 6, 10034, 2015.

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

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