Capillary rivulet rise in real-world corners
Felix Gerlach, Jeanette Hussong, Ilia V. Roisman, Cameron Tropea
Abstract
The capillary rise of liquid in a perfect corner wedge has been well studied in the past, yielding a t1/3 rise behavior with no upper bound on the height of the rivulet. However, in real-world situations the wedge corner is often not exactly sharp, either because of roughness or fabrication imperfections. In the following study the behavior of capillary rivulet rise in rounded corners is examined experimentally and theoretically, yielding a deviation from the t1/3 behavior and also a maximum rivulet height. The agreement between experiment and theory is very good.
Topics & Concepts
Wedge (geometry)Capillary actionUpper and lower boundsMechanicsSurface finishOpticsGeometryMaterials scienceGeologyPhysicsMathematicsMathematical analysisComposite materialSurface Modification and SuperhydrophobicityFluid Dynamics and Thin FilmsHeat Transfer and Boiling Studies