Figure 3
From: Effects of wettability on droplet movement in a V-shaped groove
Droplet movement on hydrophilic surface. (a) The lower meniscus of the droplet moved downwards while Vdrop increased. (b) The upper meniscus moved downwards while Vdrop decreased. The leading meniscus moves downwards in both cases. The images are rotated 90° to the right (clockwise). Marked time above images represent water injection and evaporation time respectively. Scale bar: 2 mm.
