“Inferno”

Nothing showcases the incredible power of our atmosphere like storms, and no one does stormchase photography like Mike Olbinski. In this vignette, he shows a stunning line of supercells caught near sunset on July 17, 2022. The high shear–combined with the setting sun–put on an incredible show. Dust blown up in a haboob, microbursts and downpours in the distance, and lots of churning, roiling turbulence. (Video and image credit: M. Olbinski)

From coffee-like swirls to atmospheric chaos, a data-driven model reproduces turbulent particle motion across scales using auto-regressive learning with memory effects.

https://phys.org/news/2026-05-driven-captures-dynamics-turbulence-scale.html

#turbulence #AI #fluiddynamics #machinelearning #physics

On Dolphin Turbulence

Dolphins are such fast and agile swimmers that, naturally, scientists have long wanted to understand how they swim so well. A recent study draws on numerical simulation to analyze the flow a dolphin creates when flapping its tail.

The resulting flow is highly turbulent–researchers were only able to simulate up to a fraction of a dolphin’s actual Reynolds number–with both large-scale vortices and a cascade of smaller ones. The largest vortices, shown here in white, form on the upper and lower surface of the dolphin’s tail, then slide off the tail in a vortex ring. It’s these vortex rings, the researchers found, that provide the bulk of a dolphin’s thrust.

The smaller-scale vortices, in contrast, get formed by the large vortices, and they make little to no contribution to the dolphin’s propulsion. Interestingly, these results suggest that we might be able to describe the propulsion of dolphins and other highly turbulent swimmers by focusing only on the largest scales in the flow. (Video, image, and research credit: Y. Motoori et al.; via Ars Technica)

What does turbulence look like in a quantum fluid?

Researchers are exploring how Bose–Einstein condensates shift from weak to strong turbulence, revealing how energy cascades behave when quantum mechanics takes over.

🔗 https://physicsworld.com/a/what-happens-when-a-bose-einstein-condensate-becomes-turbulent/

#QuantumPhysics #Turbulence #BEC #FluidDynamics #physics

Continuous injection and advection of Lagrangian passive tracers into a grid MHD cosmological (ENZO) simulation, to track where matter goes as function of time. Still testing stuff with my @julialang code run in post-processing over many saved snapshots. Complex flow and baryons circulation patters even under just the "simple" effect of gravity and fluid-dynamics.

#SimulatedUniverses #astrophysics #science #turbulence

RE: https://mastodon.social/@risujith/116577824196667278

A gentle reminder - the webinar is scheduled for today at 19:30 IST | 16:00 CEST | 07:00 PDT | 10:00 EDT.

#ComplexSystems #webinarinvite #Zoomcodes #IITMadras #IITK #PIK #Nonlineardynamics #Turbulence #BoundaryLayer #FluidDynamics #Bifurcations #FluidMechanics #HeatTransfer #Convection #Scaling