Reducing the residence time of drops on solids is critical for various industrial applications, including self-cleaning and anti-icing. Traditional drop dynamics usually focus on circular symmetry and have a theoretical limit for bouncing time. This study explores the bouncing dynamics of ellipsoidal drops on cylindrical surfaces. Experimental and numerical results reveal that ellipsoidal drops, especially when aligned with the cylinder’s axis, significantly reduce residence time due to preferential flow along their curved sides. The effects of drop shape and surface curvature on bouncing dynamics were analyzed for several Weber numbers. The research proposes concave/convex models to further decrease residence time by enhancing asymmetry in mass and momentum distribution. This study provides new insights into shape-dependent impact dynamics, emphasizing the role of geometric configuration between ellipsoidal drops and anisotropic surfaces.-Science Journal cover design 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
