Figure 9

Velocity contours of droplet impacting doubly-re-entrant pillars at different time periods with different overhang lengths. (a) δ = 5 µm, (b) δ = 10 µm, (c) δ = 15 µm.

Velocity contours of droplet impacting doubly-re-entrant pillars at different time periods with different overhang lengths. (a) δ = 5 µm, (b) δ = 10 µm, (c) δ = 15 µm.