Universality in freezing of an asymmetric drop

We present the evidence of universality in conical tipformation during the freezing of arbitrary-shaped sessile droplets. The focus is to demonstrate the relationship between this universality and theliquid drop shape. We observe that, in the case of asymmetric drops, this universal shape is achieved when the tip reconfigures by changing its location, which subsequently alters the frozen drop shape. The proposed “two-triangle” model quantifies the change in the tip configuration as a function of the asymmetry of the drop that shows a good agreement with the experimental evidence. Finally, based on the experimental and theoretical exercise, we propose the scaling dependence between the variations in the tip configuration and the asymmetry of the drop.

Source: Applied Physics Letters - December 8, 2016 Category: Physics Authors: Md Farhad Ismail and Prashant R. Waghmare Source Type: research