#2021gofm

[fuckyeahfluiddynamics]

Instabilities on Instabilities

The world of fluid instabilities is a rich one. Combine fluids with differing viscosities, densities, or flow speeds and they'll often break down in picturesque and predictable manners. (Image and research credit: S. Alqatari et al., see also)

[fuckyeahfluiddynamics]

Mixing With E. Coli

What happens when a flow meets swimming micro-organisms? Does the flow affect the swimmers? And how do the swimmers affect the flow in turn? Those are the questions behind the experiment seen here. (Image and research credit: R. Ran et al.; see also 1 and 2)

[fuckyeahfluiddynamics]

Chemical Flowers

These "flowers" blossom as two injected chemicals react in the narrow space between two transparent plates. The chemical reaction produces a darker ring that develops a streaky outer edge due to competition between convection and chemical diffusion.(Image and video credit: Y. Stergiou et al.)

[fuckyeahfluiddynamics]

Leaky Resonance

Some resonators aren't perfect -- nor are they meant to be! Here, researchers experiment with resonance using a disk shaking up and down over a pool of water. (Image and video credit: U. Jain et al.)

[fuckyeahfluiddynamics]

Diving Together

Two spheres dropped into water next to one another form asymmetric cavities. A single ball's cavity is perfectly symmetric, and so are two spheres', provided they are far enough apart. But for close impacts, the spheres influence one another, creating a mirror image. (Image credit: A. Kiyama et al.) Read the full article

[fuckyeahfluiddynamics]

Aerated Faucets

So much goes on in our daily lives that we never see. But with the power of the smartphones in our pockets, we can catch more than ever before, as illustrated in this video. (Image and video credit: M. Mungal)

[fuckyeahfluiddynamics]

Seeing the Flow

Experimentalists often need a sense for the overall flow before they can decide where to measure in greater detail. For such situations, flow visualization techniques are a powerful tool since they provide quick ways to see and compare flows. (Image and video credit: V. Kumar et al.)

[fuckyeahfluiddynamics]

Meet BILLY

Many wings in nature are not rigid. Instead they flex and curve with the flow. Here researchers imitate that phenomenon with BILLY (Bio-Inspired Lightweight and Limber wing prototYpe). (Image and video credit: A. Gehrke et al.)