Viscous Bouncing

POSTER

Abstract

Water drops impacting a superhydrophobic surface exhibit bouncing due to the inherent repellency of the substrate. This repellency persists even when the liquid viscosity is increased by two orders of magnitude. We show a way to predict the limiting bouncing viscosity. Furthermore, we discuss the variation of the contact time and elasticity of the rebound until viscosity eventually suppresses it entirely.

Authors

  • Aditya Jha

    • Physique et Mecanique des Milieux Heterogenes (PMMH)

  • Pierre Chantelot

    • University of Twente
    • Physique et Mecanique des Milieux Heterogenes (PMMH)

  • Christophe Clanet

    • LadHyX, École polytechnique

  • David Quéré

    • Physique et Mécanique des Milieux Hétérogènes, UMR 7636 du CNRS, PSL Research University, ESPCI, 75005 Paris, France
    • Physique et Mecanique des Milieux Heterogenes (PMMH)