Figure 2: Penetration of the vortex rings. | Nature Communications

Figure 2: Penetration of the vortex rings.

From: Origin and dynamics of vortex rings in drop splashing

Figure 2

(a,b) Early (a) and late (b) stages of vortex ring formation for ethanol drop impact (with diameter 1.9 mm) at H=35 mm (Supplementary Movie 2). The ring penetrates the pool. (c,d) Early (c) and late (d) stages of vortex ring formation for ethanol drop impact at H=60 mm (Supplementary Movie 3). The ring is quickly pulled up with a liquid jet. (e,f) Early (e) and late (f) stages of vortex ring formation for ethanol drop impact at H=100 mm (Supplementary Movie 4). The ring is pulled up much more quickly with a stronger liquid jet. (g) Illustration of the vortex ring penetration at We <64. (h) Illustration of vortex ring pulled up with a strong liquid jet at We >64. Scale bar, 300 μm long.

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