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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Drop Bouncing Dynamics on Ultrathin Films.
TL;DR: In this article, the authors describe the dynamics of drops initiating contact yet carrying enough momentum to completely lift off of the substrate which they label as contact bouncing, and find that while increasing deformability of the thin films enhances the gas entrainment phenomenon at early times, it also increases the rate of the gas purging rate, increasing the chance of contact just prior to the gas film retraction and drop lift off sequence.
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Numerical investigation of a droplet impacting obliquely on a horizontal solid surface
TL;DR: In this article , whether a droplet obeys the reflection law like a light beam is numerically explored and it is found that the reflection angle is always larger than the incident angle as the magnitudes of the normal and tangential velocities reduce disproportionately after reflection.
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Simulation of Drop Impact on Substrate with Micro-wells
TL;DR: In this paper , a drop is more apt to jump from a micro-well substrate than from a flat surface, resulting in smaller wetted area and shorter contact time, and a drop jumping region map is drawn.
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Recycling of steelmaking electric arc furnace dust into aqueous cyan ceramic ink for inkjet printing process and its printability
TL;DR: In this paper, aqueous cyan ceramic ink for ink-jet printing applications was synthesized using EAFD, in which expensive cobalt oxide is replaced by Zn-enriched Zn(EAFD)0.25Co0.75Al2O4, which has a vivid cyan color, was selected as the optimum composition of cyan ceramic pigments.