Dynamic contact angle model for resolving low-viscosity droplet oscillations during spreading over a surface with varying wettability
Raghvendra Kumar Dwivedi, Vandana Jain, K. Muralidhar
Abstract
Droplet oscillations of low viscosity liquids spreading over textured surfaces with hysteresis arise from pinning of the three-phase contact line. An improved dynamic contact angle model is proposed here to model pinning, that yields contact angle oscillations in numerical simulation, in agreement with experiments.
Topics & Concepts
Contact angleWettingHysteresisViscosityMaterials sciencePhase angle (astronomy)Wetting transitionMechanicsPhase (matter)Surface (topology)Condensed matter physicsOpticsPhysicsComposite materialGeometryMathematicsQuantum mechanicsSurface Modification and SuperhydrophobicityFluid Dynamics and Heat TransferFluid Dynamics and Thin Films