Dynamics of impinging droplets on superhydrophobic surfaces
The impact of liquid droplets on solid surfaces is a typical multiphase flow that has attracted much attention in both academic and industrial areas. The dynamic behaviors of an impinging droplet are highly dependent on the impact conditions: the physical properties of the liquid, the wettability of the target surface, the stiffness of the solid substrate, and the surrounding air pressure, to name a few; speaking of which, surface wettability is the predominant one over other influencing factors, and almost all impact phenomena can happen for impinging low-viscosity droplets on superhydrophobic surfaces. In this talk, I will introduce our recent studies on the impact dynamics of liquid droplets on superhydrophobic surfaces from two perspectives: 1) the effects of the liquid-solid friction on droplet rebound behaviors; 2) jet dynamics in droplet impact and its applications.
Longquan Chen is currently a full professor in School of Physics at The University of Electronic Science and Technology of China. He received his BSc from Chongqing University (2007), MPhil from Hong Kong University of Science and Technology (2009), and Dr.-Ing. from the Technische Universität Darmstadt (2013). Prof. Chen is mainly engaged in research of soft matter physics, interfacial fluids, nanomechanics and functional interfacial materials and devices. He has published over 70 peer-reviewed articles in international journals including Physical Review Letters, Nano Letters, Advanced Science, and Physics of Fluids, with more than 3500 citations (H-index 28, google scholar).