Capillary transport from barrel to clamshell droplets on conical fibers
J. Van Hulle, Floriane Weyer, S. Dorbolo, Nicolas Vandewalle
Abstract
Droplets spontaneously move when they are placed at the tip of a cone surface. Using three-dimensionally-printed structures, an experimental exploration of a large panel of configurations regarding the aperture angle of the cone finds evidence for a change of the droplet geometry while moving along the conical fiber---from barrel to clamshell shape. The position of this geometrical transition is estimated and two models are proposed to describe the motion of the barrel and the clamshell droplets.
Topics & Concepts
Barrel (horology)Conical surfaceMaterials scienceCapillary actionCone (formal languages)Ligand cone angleMechanicsOpticsGeometryPhysicsComposite materialComputer scienceAlgorithmMathematicsSurface Modification and SuperhydrophobicityFluid Dynamics and Heat TransferAdhesion, Friction, and Surface Interactions