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arXiv · 2408.06950

Onset of Intermittency and Multiscaling in Active Turbulence

Kolluru Venkata Kiran·Kunal Kumar·Anupam Gupta·Rahul Pandit·Samriddhi Sankar Ray
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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.

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Kolluru Venkata Kiran, Kunal Kumar, Anupam Gupta, Rahul Pandit, Samriddhi Sankar Ray. 2024-08-13. Onset of Intermittency and Multiscaling in Active Turbulence. https://doi.org/10.1103/physrevlett.134.088302

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