The kinematics and deformation of bubbles when impacting the curved boundary with hydrophilicity and hydrophobicity

Abstract Research on the behavior of bubble collision has always been one focuses in scientific field. This work kinematics and deformation bubbles when impacting curved boundary with hydrophilicity hydrophobicity. The impact process colliding wall was recorded by a high-speed camera. effects wettability radius curvature were analyzed. results show that collides hydrophilic wall, it will bounce many times until leaves wall. Aiming at phenomenon liquid film extrusion rupture, theoretical model is established to deduce prediction formula induction time, which mainly related thickness, critical rupture compression speed film. error less than 5.0%.