Large impact velocities suppress the splashing of micron-sized droplets
Masashi Usawa, Yuta Fujita, Yoshiyuki Tagawa, Guillaume Riboux, José Manuel Gordillo
Abstract
An investigation shows that, counterintuitively, the splash of drops impacting with velocities of a few tens of meters per second is suppressed because the aerodynamic lift force that would cause the liquid film to separate from the substrate and to break into much finer droplets is inhibited. This occurs as a consequence of the fact that the thickness of the lamella becomes similar to the mean-free path of gas molecules.
Topics & Concepts
SplashLamella (surface anatomy)Lift (data mining)MechanicsMaterials scienceDragComposite materialPhysicsMeteorologyData miningComputer scienceFluid Dynamics and Heat TransferElectrohydrodynamics and Fluid DynamicsPlant Surface Properties and Treatments