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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.

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Journal ArticleDOI

A leaf-mimic rain energy harvester by liquid-solid contact electrification and piezoelectricity

TL;DR: In this paper, a leaf-mimic rain energy harvester (REH) was developed to collect electrostatic and kinetic energy simultaneously based on the synergy of liquid-solid contact electrification and the piezoelectric effect.
Journal ArticleDOI

Bioinspired Fabrication of Hierarchical-Structured Superhydrophobic Surfaces To Understand Droplet Bouncing Dynamics for Enhancing Water Repellency

TL;DR: In this paper, the authors analyzed the critical condition between rebounding and splashing of impact droplets on the hierarchical-structured superhydrophobic surfaces and considered the rebounding process as the research object for revealing the action mechanism of triple-phase contact line on mediating the dynamic water repellency.
Journal ArticleDOI

Coalescence of sessile droplets of varying viscosities for line printing

TL;DR: In this paper, the effect of viscosity on the dimensionless spreading length and the center-to-center distance (L) of sessile droplets is investigated.
Journal ArticleDOI

Spreading, encapsulation and transition to arrested shapes during drop impact onto hydrophobic powders.

TL;DR: It is found that a lower particle mobility may aid in promoting liquid marble formation at lower impact kinetic energies, and it is proposed that simple surface tensions may be inadequate to describe deformation dynamics in liquid marbles.
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