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. 2025 Feb 28;134(8):088302.
doi: 10.1103/PhysRevLett.134.088302.

Onset of Intermittency and Multiscaling in Active Turbulence

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Onset of Intermittency and Multiscaling in Active Turbulence

Kolluru Venkata Kiran et al. Phys Rev Lett. .

Abstract

Recent results suggest that highly active, chaotic, nonequilibrium 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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