Abstract
Superhydrophobic coatings have shown promise in reducing both ice accretion and accumulation on a surface. However, recent studies of super-cooled water droplet impact dynamics on a freezing superhydrophobic surface have been limited to either low Weber numbers (Wep 90) the room temperature droplet was unable to sustain the inertial forces and therefore broke into smaller droplets upon surface impact while a more viscous super-cooled water droplet was able rebound without disintegration. A regime map depicting the various super-cooled droplet rebounding outcomes on the freezing superhydrophobic surface was also plotted as functions of the Weber and Ohnesorge number. We observed that viscosity effects would start to affect the droplet rebound dynamics at Weber numbers of approximately 90 or greater.
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