Figure 11

(a) Temporal variation of difference between center of pressure (rcp) and centroidal point (rCG) for rolling and spinning droplet in hydrophobic wedge, and (b) temporal variation of centroidal point (rCG) for rolling and spinning droplet in hydrophobic wedge. xcp, ycp, zcp, and xCG, yCG, zCG represents the center of pressure and centroidal point from x,y, and x-axes.