Directing the transportation of a water droplet on a patterned superhydrophobic surface

2008 ◽  
Vol 93 (23) ◽  
pp. 233112 ◽  
Author(s):  
Qian Feng Xu ◽  
Jian Nong Wang ◽  
Ian H. Smith ◽  
Kevin D. Sanderson
Keyword(s):  
Water Droplet ◽  
Superhydrophobic Surface

Hertz model for contact of water droplet with superhydrophobic surface

2009 ◽  
Vol 373 (8-9) ◽  
pp. 804-806 ◽  
Author(s):  
Michel Molotskii ◽  
Ilya Torchinsky ◽  
Gil Rosenman
Keyword(s):  
Water Droplet ◽  
Superhydrophobic Surface ◽  
Hertz Model

Evaporating behaviors of water droplet on superhydrophobic surface

2012 ◽  
Vol 55 (12) ◽  
pp. 2463-2468 ◽  
Author(s):  
PengFei Hao ◽  
CunJing Lv ◽  
Feng He
Keyword(s):  
Water Droplet ◽  
Superhydrophobic Surface

How to repel hot water from a superhydrophobic surface?

2014 ◽  
Vol 2 (27) ◽  
pp. 10639-10646 ◽  
Author(s):  
Zhe-Jun Yu ◽  
Jieyi Yang ◽  
Fang Wan ◽  
Quan Ge ◽  
Long-Lai Yang ◽  
...  
Keyword(s):  
Water Droplet ◽  
Superhydrophobic Surface ◽  
Hot Water ◽  
Superhydrophobic Surfaces ◽  
Surface Temperatures

We demonstrated the superhydrophobicity of five superhydrophobic surfaces by manipulating water droplet and surface temperatures.

scholarly journals Pinned Droplet Size on a Superhydrophobic Surface in Shear Flow

Aerospace ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 34
Author(s):  
Mitsugu Hasegawa ◽  
Katsuaki Morita ◽  
Hirotaka Sakaue ◽  
Shigeo Kimura
Keyword(s):  
Boundary Layer ◽  
Shear Flow ◽  
Droplet Size ◽  
Water Droplet ◽  
Superhydrophobic Surface ◽  
High Speed ◽  
High Speed Camera ◽  
Sessile Droplet ◽  
Air Velocity

The recent development of a superhydrophobic surface enhances the droplet shedding under a shear flow. The present study gives insights into the effects of shear flow on a pinned droplet over a superhydrophobic surface. To experimentally simulate the change in the size of a sessile droplet on an aerodynamic surface, the volume of the pinned droplet is expanded by water supplied through a pore. Under a continuous airflow that provides a shear flow over the superhydrophobic surface, the size of a pinned water droplet shed from the surface is experimentally characterized. The air velocity ranges from 8 to 61 m/s, and the size of pinned droplets shed at a given air velocity is measured using an instantaneous snapshot captured with a high-speed camera. It is found that the size of the shedding pinned droplet decreases as air velocity increases. At higher air velocities, shedding pinned droplets are fully immersed in the boundary layer. The present findings give a correlation between critical air velocity and the size of pinned droplets shed from the pore over the superhydrophobic surface.

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