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
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Aditya Jha
Physique et Mecanique des Milieux Heterogenes (PMMH)
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Pierre Chantelot
University of Twente, Physique et Mecanique des Milieux Heterogenes (PMMH)
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Christophe Clanet
LadHyX, École polytechnique
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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)