Dynamics of droplet impacting on a cone

Droplet rebound dynamics on superhydrophobic surfaces has attracted much attention due to its importance in numerous technical applications, such as anti-icing and fluid transportation. It been demonstrated that changing the macro-structure of surface could result significant change droplet morphology hydrodynamics. Here, we conduct both experimental numerical studies impacting a cone identify three different dynamic phases by conditions, i.e., Weber number angle. The spreading retracting are studied for each phase. Particularly, it is found phase 3, where leaves ring, contact time reduced 54% compared with flat surface. A theoretical model based energy analysis developed get point which agrees well simulation result. Besides, effect angle explored. Finally, diagram distribution We given, can provide guidance related applications.