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
Successive Rebounds of Impinging Water Droplets on Superhydrophobic Surfaces.
Yile Wang,Yage Zhao,Lijie Sun,Abbasali Abouei Mehrizi,Shi-Yow Lin,Jia-hong Guo,Longquan Chen +6 more
TL;DR: In this paper , an experimental investigation into the bouncing behavior of water droplets impinging on macroscopically flat superhydrophobic surfaces was conducted, and it was shown that the restitution coefficient, which quantifies the energy consumed during impact and rebound, exhibits a nonmonotonic dependence on the Weber number.
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Nanotextured Aluminum-Based Surfaces with Icephobic Properties
TL;DR: In this paper, the authors discuss the dangers of water freezing (icing) in cold environments and may have lethal consequences, and the installation of active thermal systems, which consume energy.
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Water drop impact on a semi-cylindrical convex hot surface for a diameter ratio of unity
S. Jowkar,M.R. Morad +1 more
TL;DR: In this article, the authors focused on water drop impingement on a mimetic solid semi-cylindrical convex hot surface, with a size equal to the drop, and measured the maximum spreading of the droplet at different surface temperatures and impact Weber numbers.
Journal ArticleDOI
Low Weber number droplet impact on heated hydrophobic surfaces
TL;DR: In this article , the authors investigated low Weber number droplet impact on heated hydrophobic surfaces using synchronized high-speed optical and infrared (IR) imaging, and correlated the droplet dynamics to the spatial distribution of the solid-liquid interfacial temperature, heat flux, and the total heat transfer to a droplet.
Journal ArticleDOI
Physical De-Icing Techniques for Wind Turbine Blades
TL;DR: The review discusses an effective anti-icing strategy for wind turbine blades, including various passive and active physical de-icing techniques using superhydrophobic coatings, thermal heaters, ultrasonic and vibration devices, operating control to determine the optimal methods and their combinations.