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 (31)
- Flocks, herds, and schools: A quantitative theory of flocking
- Particles and fields in fluid turbulence
- Meso-scale turbulence in living fluids
- Hydrodynamic fluctuations and instabilities in ordered suspensions of self-propelled particles
- Active matter
- Measurement of Lagrangian velocity in fully developed turbulence
- Active Turbulence
- Multifractal statistics of Lagrangian velocity and acceleration in turbulence
- Universal intermittent properties of particle trajectories in highly turbulent flows
- Universal scaling of active nematic turbulence
- The topography of the environment alters the optimal search strategy for active particles
- Extreme active matter at high densities
- Multiscaling in Models of Magnetohydrodynamic Turbulence
- Scaling exponents saturate in three-dimensional isotropic turbulence
- Anomalous diffusion and Lévy walks distinguish active from inertial turbulence
- Extended Self Similarity works for the Burgers equation and why
- Abrupt growth of large aggregates by correlated coalescences in turbulent flow
- Enhancement of intermittency in superfluid turbulence
- Vortex dynamics and Lagrangian statistics in a model for active turbulence
- Intermittency, fluctuations and maximal chaos in an emergent universal state of active 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%
- Condensate formation and multiscale dynamics in two-dimensional active suspensions
- Dynamics of Passive-Scalar Turbulence
- Friction Scaling Laws for Transport in Bacterial Turbulence
- Giant vortex dynamics in confined active turbulence
- Saturation and multifractality of Lagrangian and Eulerian scaling exponents in 3D isotropic turbulence
- Intermittency measurement in two dimensional bacterial turbulence
- An analytical and computational study of the incompressible Toner-Tu Equations
- The Statistical Properties of Superfluid Turbulence in He from the Hall-Vinen-Bekharevich-Khalatnikov Model
- Cascades and Kolmogorov's lognormal scaling in two-dimensional bacterial turbulence