Journal ArticleDOI
Maximal deformation of an impacting drop
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In this article, the impact of a liquid drop of low viscosity on a super-hydrophobic surface was studied. But the authors focused on the effect of the drop on the spread of the liquid on the surface.Abstract:
We first study the impact of a liquid drop of low viscosity on a super-hydrophobic surface. Denoting the drop size and speed as are the liquid density and surface tension). This law is also observed to hold on partially wettable surfaces, provided that liquids of low viscosity (such as water) are used. The law is interpreted as resulting from the effective acceleration experienced by the drop during its impact. Viscous drops are also analysed, allowing us to propose a criterion for predicting if the spreading is limited by capillarity, or by viscosity.read more
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Journal ArticleDOI
Droplet Impingement on a Surface at Low Reynolds Numbers
TL;DR: In this paper, a computational study was conducted of axisymmetric droplet impingement on a flat surface at low droplet Reynolds numbers, which was motivated by the problem of deposition of melted volcanic ash particles within aircraft gas turbine engines.
Journal ArticleDOI
A quantitative phase diagram of droplet impingement boiling
TL;DR: In this article, a quantitative phase diagram of droplet impingement boiling on a heated substrate is drawn based on the boiling morphologies recorded with high-speed camera, which can be used to qualitatively determine the strength of droplets impeding heat transfer and the transition boundaries.
Journal ArticleDOI
Controlling the residence time of a bouncing drop with asymmetric shaping.
TL;DR: This study investigates the bouncing dynamics of egg-shaped footprint drops to prove the concept of controlling the residence time with asymmetric shaping in an electrohydrodynamic device and describes the exceptional impact dynamics and the reduced contact time.
Journal ArticleDOI
The macroscopic pancake bounce
Jonas Andersen Bro,Kasper Sternberg Brogaard Jensen,Alex Nygaard Larsen,Julia M. Yeomans,Tina Hecksher +4 more
TL;DR: In this paper, the authors demonstrate that the pancake bounce of millimetric water droplets on surfaces patterned with hydrophobic posts can be reproduced on larger scales, using a bed of nails as the structured surface and a water balloon as the water droplet.
Book ChapterDOI
Soft Impact Cratering
TL;DR: In this article, various experiments of impact cratering performed at a laboratory scale are reviewed and a basic understanding of the cratering mechanics brings crucial and primordial knowledge to soft matter physics itself.