Cascades and transitions in turbulent flows

A Alexakis, L Biferale - Physics Reports, 2018 - Elsevier
Turbulent flows are characterized by the non-linear cascades of energy and other inviscid
invariants across a huge range of scales, from where they are injected to where they are …

Synthetic Lagrangian turbulence by generative diffusion models

T Li, L Biferale, F Bonaccorso, MA Scarpolini… - Nature Machine …, 2024 - nature.com
Lagrangian turbulence lies at the core of numerous applied and fundamental problems
related to the physics of dispersion and mixing in engineering, biofluids, the atmosphere …

Drying in the low-latitude Atlantic Ocean contributed to terrestrial water storage depletion across Eurasia

Z Shen, Q Zhang, VP Singh, Y Pokhrel, J Li… - Nature …, 2022 - nature.com
Abstract Eurasia, home to~ 70% of global population, is characterized by (semi-) arid
climate. Water scarcity in the mid-latitude Eurasia (MLE) has been exacerbated by a …

Anomalous diffusion and Lévy walks distinguish active from inertial turbulence

S Mukherjee, RK Singh, M James, SS Ray - Physical Review Letters, 2021 - APS
Bacterial swarms display intriguing dynamical states like active turbulence. Now, using a
hydrodynamic model, we show that such dense active suspensions manifest superdiffusion …

Three-dimensional fluid motion in Faraday waves: creation of vorticity and generation of two-dimensional turbulence

N Francois, H Xia, H Punzmann, S Ramsden, M Shats - Physical Review X, 2014 - APS
We study the generation of 2D turbulence in Faraday waves by investigating the creation of
spatially periodic vortices in this system. Measurements that couple a diffusing light imaging …

Flight–crash events in turbulence

H Xu, A Pumir, G Falkovich… - Proceedings of the …, 2014 - National Acad Sciences
The statistical properties of turbulence differ in an essential way from those of systems in or
near thermal equilibrium because of the flux of energy between vastly different scales at …

Nonequilibrium hyperuniform states in active turbulence

R Backofen, AYA Altawil… - Proceedings of the …, 2024 - National Acad Sciences
We demonstrate that the complex spatiotemporal structure in active fluids can feature
characteristics of hyperuniformity. Using a hydrodynamic model, we show that the transition …

Wave-based liquid-interface metamaterials

N Francois, H Xia, H Punzmann, PW Fontana… - Nature …, 2017 - nature.com
The control of matter motion at liquid–gas interfaces opens an opportunity to create two-
dimensional materials with remotely tunable properties. In analogy with optical lattices used …

Generation and reversal of surface flows by propagating waves

H Punzmann, N Francois, H Xia, G Falkovich, M Shats - Nature Physics, 2014 - nature.com
The ability to send a wave to fetch an object from a distance would find a broad range of
applications. Quasi-standing Faraday waves on water create horizontal vortices,, yet it is not …

[HTML][HTML] An experiment generates a specified mean strained rate turbulent flow: Dynamics of particles

R Hassanian, A Helgadottir, L Bouhlali, M Riedel - Physics of Fluids, 2023 - pubs.aip.org
This study aimed to simulate straining turbulent flow empirically, having direct similarities
with vast naturally occurring flows and engineering applications. The flow was generated in …