Tailors droplet impact dynamics via azimuthal grooves, axial grooves, or pillars to achieve prompt rebound and reduced contact time on cylindrical targets.
Qian, Lijuan · Cong, Huang · Li, Lv · Fu, Qingfei · Chao, Fu
Physics of Fluids 2023
Proposes rebound and splash thresholds dependent on D/D0 and surface structure
Constructs a complete rebound threshold semi-empirical model based on energy conservation
Azimuthal grooved surface exhibits the shortest contact time
Presents a prediction formula for maximum spread diameter