Fig. 2: Moving direction of the solid-liquid-vapour three-phase contact line.
From: Polygonal non-wetting droplets on microtextured surfaces
a Schematic representation of the pillars (white color) and contact line from a top view. The dot marked with “O” represents the reference point. The moving direction of the three-phase contact line is marked using an orange arrow. The red and white lines represent the solid-liquid contact line LSL and liquid-vapour part LLV, respectively. α is defined as the angle (having a positive value in anticlockwise direction) between the contact line and the x-axis. b Diagram illustrating the liquid-vapour line fraction ε(α) = LLV/L as the function of α in the polar coordinate system for different reference points. c Final configuration of the droplet (Supplementary Movie 9). The block directions (red arrows) α ≈ 63°, 0°, and – 63° are obtained from (b). Source data are provided as a Source Data file.
