#2022gosmp

[fuckyeahfluiddynamics]

Bending in Bubbles

Inside a cavity with a square cross-section, bubbles form an array. The shapes of their edges are determined by surface tension and capillarity. (Image and research credit: M. Jouanlanne et al., see also)

[fuckyeahfluiddynamics]

A Levitated Boil

When acoustically levitated, objects tend to clump together and move like a single, large solid. But researchers found more fluid-like states for their levitated particles when the particles were smaller. (Image and video credit: B. Wu et al.)

[fuckyeahfluiddynamics]

Stably Jammed

Granular materials like sand, gravel, and medications can become a rigid mass when squeezed or sheared. Even with a relatively loose packing, these materials can jam together to act like a solid if the contacts between grains no longer allow particles to shift or rotate. (Image and video credit: Y. Zhao et al., research pre-print)

[fuckyeahfluiddynamics]

"Keeping Our Sheet Together"

When two liquid jets collide, they form a falling liquid sheet. Here researchers explore how that sheet breaks up when the liquids involved contain polymers. (Image credit: C. Galvin et al.)

[fuckyeahfluiddynamics]

Escaping the Flood

Fire ants clump together into giant rafts to stay alive during floods. But these rafts won't form with just any number of ants. (Image and video credit: H. Ko and D. Hu)

[fuckyeahfluiddynamics]

A leak can actually stop itself, as shown in this video. To demonstrate, the team used a tube pierced with a small hole. When filled, water initially shoots out the hole in a jet. (Image and video credit: C. Tally et al.)

[fuckyeahfluiddynamics]

Birds, fish, and other creatures form amazing, undulating swarms of individuals. How these collectives comes together and move continues to fascinate scientists. (Image and video credit: M. Casiulis and D. Levine)

[fuckyeahfluiddynamics]

Hard materials don't always work well in robotics. Here, researchers build soft actuators that can bend, curl, and tighten in order to manipulate objects. (Video and image credit: T. Jones et al.; research credit: T. Jones et al.)