Simulation solution for micro droplet impingementon a flat dry surface

This paper presents a computational fluid dynamics approach formicro droplet impacting on a flat dry surface. A two-phase flowapproach is employed using FLUENT VOF multiphase model to calculatethe flow distributions upon impact. The contact line velocity istracked to calculate the dynamic contact angle through user definedfunction program. The study showed that the treatment of contactline velocity is crucial for the accurate prediction of dropletimpacting on poor wettability surfaces. On the other hand, it hasmuch less influence on the simulation of droplet impacting on goodwettability surfaces. Good fit between simulation results andexperimental data is obtained using this model.