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Breaking a jet of liquid into droplets lies at the heart of many industrial processes: spray painting, fuel injection, and asthma inhalers, to name a few. Here, researchers are looking at a different method of breaking up a liquid jet: shooting a shock wave along its length. (Image credit: S. Rao et al.)

When supersonic jets get emitted into rarefied air, they behave differently than they do in regular atmospheric conditions. (Image credit: S. Lee et al.)

In mechanical systems, gears and pulleys transmit rotation from one location to another. Here, researchers explore a fluid dynamical version of such systems. (Image credit: J. Smith et al.)

A sudden breeze can pluck droplets hanging from a stem. Here, researchers recreate that phenomenon in the laboratory. With a close-up view and high-speed images, we can enjoy every detail of the detachment and break-up. (Video and image credit: D. Maity et al.)

Flow visualization is both an art and science in fluid dynamics. Here, researchers were interested in studying the separation bubble that forms over a backward-facing ramp--a shape that shows up, for example, on an aircraft. (Image and research credit: B. Steinfurth et al.; see also here)

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