TY - JOUR
T1 - Non-wetting impact of a sphere onto a bath and its application to bouncing droplets
AU - Galeano-Rios, Carlos A.
AU - Milewski, Paul A.
AU - Vanden-Broeck, J. M.
N1 - Funding Information:
We thank A. Damiano for sharing the experimental data for figure 11, which he obtained as part of his M.Sc. work. C.A.G.-R. and P.A.M. gratefully acknowledge support through the EPSRC project EP/N018176/1. C.A.G.-R. was also supported by ANP award COMPETRO PRH32 and PCI award 454798/2015-6 at IMPA, and P.A.M. by the CNPq Science Without Borders award 402178/2012-2. J.-M.V.-B. gratefully acknowledges support through the EPSRC project EP/N018559/1.
Publisher Copyright:
© 2017 Cambridge University Press.
PY - 2017/9/10
Y1 - 2017/9/10
N2 - 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.
AB - 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.
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U2 - 10.1017/jfm.2017.424
DO - 10.1017/jfm.2017.424
M3 - Article
AN - SCOPUS:85026741156
SN - 0022-1120
VL - 826
SP - 97
EP - 127
JO - Journal of Fluid Mechanics
JF - Journal of Fluid Mechanics
ER -