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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Journal ArticleDOI
Spreading and penetration dynamics of nanosilica sol droplets impacting on porous rocks
Journal ArticleDOI
Spreading dynamics of microdroplets on nanostructured surfaces.
TL;DR: Wang et al. as discussed by the authors developed contact-initiated wetting techniques combined with structuring-independent wettability control to achieve microdroplet (<500 μm) spreading on arbitrary surfaces while eliminating parasitic pinning effects (pining force ∼ 0) and initial impact momentum effects (Weber number ∼ 0).
Journal ArticleDOI
Retraction and bouncing dynamics of nanodroplets upon impact on superhydrophobic surfaces
Yi-Feng Wang,Yi-Bo Wang,Cong-Lei Zhang,Xin-lei He,Yan-Ru Yang,Shaokai Zheng,Duu-Jong Lee,Xiaodong Wang +7 more
TL;DR: In this article , the authors investigated the retraction and bouncing dynamics of an impacting low-viscosity nanodroplet on superhydrophobic surfaces via molecular dynamics simulations, aiming to reveal the scaling laws of retraction velocities and to establish the relationship between them.
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Water Droplet Impact on Perfluoropolyether-Based Liquid-Like Surfaces
TL;DR: In this paper , a high-speed camera was used to investigate the oblique impact of water droplets on a surface with a liquid-like perfluoropolyether coating.