Capillary Rivulet Rise in Real-World Corners

Publication date: Available online 7 February 2020Source: Colloids and Surfaces A: Physicochemical and Engineering AspectsAuthor(s): Felix Gerlach, Jeanette Hussong, Ilia V Roisman, Cameron TropeaAbstractThe 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.Graphical abstract

Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects - February 8, 2020 Category: Chemistry Source Type: research