Coexistence of Contact Line Pinning and Depinning
Textured surfaces are instrumental in water repellency or fluid wicking applications, where the pinning and depinning of the liquid–gas interface plays an important role. We demonstrate that a contact line can exhibit nonuniform behavior even without varying the local energy barrier. Around a cylindrical pillar, an interface can reside in an intermediate state where segments (…)
Modeling Evaporation from Nanopores
Evaporation from nanopores is of fundamental interest in nature and various industrial applications. We present a theoretical framework to elucidate evaporation and transport within nanopores by incorporating non-equilibrium effects due to the deviation from classical kinetic theory. Additionally, we include the non-local effects arising from phase-change in nanoporous geometries, and the self-regulation of the shape (…)