Controlling bouncing drops on solid surfaces is crucial for anti-icing and self-cleaning applications due to reduced residence time. Traditionally, drops are assumed to be spherical at impact, but this study explores the dynamics of oblate and prolate ellipsoidal drops to modify residence time. Both experimental and numerical analyses show that the initial shape significantly affects the bounce speed, as explained by the scaling of maximum spreading time. The hydrodynamic behaviors of these ellipsoidal drops are examined through changes in diameters, heights, velocity fields, momentum, and energy dissipation. This approach could offer an efficient method for controlling drop residence time in practical applications. -Scientific Journal cover by scapiens
[Scientific Journal cover design] Low-Thermal-Budget Fluorite-Structure Ferroelectrics for Future Electronic Device Applications
In article number 2100028, Jiyoung Kim, Si Joon Kim, and their team review key factors involved in developing fluorite-structure ferroelectrics
