Non-wetting impact of a sphere onto a bath and its application to bouncing droplets

Carlos A. Galeano-Rios, Paul A. Milewski, J -M Vanden-Broeck

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We present a fully predictive model for the impact of a smooth, convex and perfectly hydrophobic solid onto the free surface of an incompressible fluid bath of infinite depth in a regime where surface tension is important. During impact, we impose natural kinematic constraints along the portion of the fluid interface that is pressed by the solid. This provides a mechanism for the generation of linear surface waves and simultaneously yields the pressure applied on the impacting masses. The model compares remarkably well with data of the impact of spheres and bouncing droplet experiments, and is completely free of any of impact parametrisation.

Original languageEnglish
Pages (from-to)97-127
Number of pages31
JournalJournal of Fluid Mechanics
Volume826
Early online date2 Aug 2017
DOIs
Publication statusPublished - 10 Sep 2017

Keywords

  • capillary waves
  • drops
  • wave-structure interactions

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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