A Study of Splashes

by A. M. Worthington

Figs. 7, 8, and 9 show the two parts gradually separating.

SERIES VI—(continued)

Scale reduced to about 7/10.

6 0·045 sec.

7

8 0·050 sec.

9 0·054 sec.

Fig. 10 shows specially well the ripples on the surface of the descending bubble. These undulations sometimes become so accentuated that the upper part of this descending bubble is detached, and then the curious phenomenon may be seen of this detached part still following the rest downwards through the liquid with an unsteady, lurching motion.

Meanwhile the upper half of the divided air-column is seen in Fig. 9 to resemble a deep basin which now rapidly fills up by the influx of liquid from all sides. It is from the confluence of this inflowing liquid into channels which necessarily narrow as the centre is approached that the great velocity with which the liquid spirts upwards is obtained. In Fig. 11 the jet is just discernible above the surface, and in Fig. 13 it is well-established.

SERIES VI—(continued)