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http://hdl.handle.net/1813/11469
| Title: | Liquid acrobatics |
| Authors: | Bird, James
Stone, Howard |
| Keywords: | Capillarity
Drops and bubbles |
| Issue Date: | 9-Oct-2008 |
| Abstract: | We experiment with injecting a continuous stream of gas into a shallow liquid, similar to how one might blow into a straw placed at the bottom of a near-empty drink. By varying the angle of the straw (here a metal needle), we observe a variety of dynamics, which we film using a high-speed camera. Most noteworthy is an intermediate regime in which cyclical jets erupt from the air-liquid interface and breakup into air-born droplets. These droplets trace out a parabolic trajectory and bounce on the air-liquid interface before eventually coalescing. The shape of each jet, as well as the time between jets, is remarkably similar and leads to droplets with nearly identical trajectories. |
| URI: | http://hdl.handle.net/1813/11469 |
| Appears in Collections: | Fluid Dynamics Videos
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