Onset of Intermittency and Multiscaling in Active Turbulence
Soft Condensed Matter
2025-03-26 v3 Chaotic Dynamics
Fluid Dynamics
Abstract
Recent results suggest that highly active, chaotic, non-equilibrium states of living fluids might share much in common with high Reynolds number, inertial turbulence. We now show, by using a hydrodynamical model, the onset of intermittency and the consequent multiscaling of Eulerian and Lagrangian structure functions as a function of the bacterial activity. Our results bridge the worlds of low and high Reynolds number flows as well as open up intriguing possibilities of what makes flows intermittent.
Keywords
Cite
@article{arxiv.2408.06950,
title = {Onset of Intermittency and Multiscaling in Active Turbulence},
author = {Kolluru Venkata Kiran and Kunal Kumar and Anupam Gupta and Rahul Pandit and Samriddhi Sankar Ray},
journal= {arXiv preprint arXiv:2408.06950},
year = {2025}
}
Comments
A nearly identical version of this manuscript is published in Physical Review Letters ( https://doi.org/10.1103/PhysRevLett.134.088302)