Journal ArticleDOI
Maximal deformation of an impacting drop
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TLDR
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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Superhydrophobicity enhancement through substrate flexibility.
TL;DR: In this paper, the rational tuning of flexibility can work synergistically with the surface microtexture or nanotexture to enhance liquid repellency performance, characterized by impalement and breakup resistance, contact time reduction and restitution coefficient increase.
Journal ArticleDOI
The fluid trampoline: droplets bouncing on a soap film
Tristan Gilet,John W. M. Bush +1 more
TL;DR: In this article, a combined experimental and theoretical investigation of droplets falling onto a horizontal soap film is presented, where both static and vertically vibrated soap films are considered, including simple and complex periodic states, multi-periodicity and chaos.
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Effects of process variables on the encapsulation of oil in ca-alginate capsules using an inverse gelation technique
TL;DR: The effects of process variables on the encapsulation of oil in a calcium alginate membrane using an inverse gelation technique increased following first-order kinetics with an increasing curing time and an increase in the calcium chloride concentration increased the membrane thickness of wet capsules and the elastic modulus of dry capsules.
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Self-propelled jumping upon drop coalescence on Leidenfrost surfaces
TL;DR: In this paper, the authors report an experimental study of self-propelled jumping on a Leidenfrost surface, where the heated substrate gives rise to a vapour layer on which liquid drops float.
Journal ArticleDOI
Drop Impact Dynamics on Oil-Infused Nanostructured Surfaces
TL;DR: The study of the impact dynamics of a water drop on oil-infused nanostructured surfaces using high-speed microscopy and scalable metal oxide nano surfaces shows that the oil viscosity does not have significant effects on the maximal spreading radius of the water drop, while it moderately affects the retraction dynamics.