Onset of Intermittency and Multiscaling in Active Turbulence
arXiv:2408.06950 · doi:10.1103/PhysRevLett.134.088302
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.
A nearly identical version of this manuscript is published in Physical Review Letters ( https://doi.org/10.1103/PhysRevLett.134.088302)
References in corpus (8)
- Meso-scale turbulence in living fluids
- Active matter
- Multifractal statistics of Lagrangian velocity and acceleration in turbulence
- Lagrangian Statistics for Navier-Stokes Turbulence under Fourier-mode reduction: Fractal and Homogeneous Decimations
- Intermittency of quantum turbulence with superfluid fractions from 0% to 96%
- Saturation and multifractality of Lagrangian and Eulerian scaling exponents in 3D isotropic turbulence
- Intermittency measurement in two dimensional bacterial turbulence
- Cascades and Kolmogorov's lognormal scaling in two-dimensional bacterial turbulence