Experiments and simulation study on a droplet falling down to the hydrophobic/hydrophilic surface

Abstract

Droplet impact on hydrophilic and hydrophobic wall is a common phenomenon in the field of life and industry. When the droplets impact the wall, it forms a contact angle θ with the wall. When θ>150˚, the surface is super-hydrophobic; 150˚>θ>90˚, the surface is hydrophobic; 30˚