Onset of meso-scale turbulence in living fluids

Abstract

Meso-scale turbulence is an innate phenomenon, distinct from inertial turbulence, that spontaneously occurs at zero-Reynolds number in fluidized biological systems. This spatio-temporal disordered flow radically changes nutrient and molecular transport in living fluids and can strongly affect the collective behaviour in prominent biological processes, including biofilm formation, morphogenesis and cancer invasion. Despite its crucial role in such physiological processes, understanding meso-scale turbulence and any relation to classical inertial turbulence remains obscure. Here, we show how the motion of active matter along a micro-channel transitions to meso-scale turbulence through the evolution of disordered patches (active puffs) from an absorbing state of flow vortex-lattices. We demonstrate that the critical behaviour of this transition to meso-scale turbulence in a channel belongs to the directed percolation universality class. This finding bridges our understanding of the onset of zero-Reynolds number meso-scale turbulence and traditional scale-invariant turbulence, therefore generalizing theories on the onset of turbulence in confinement to the distinct classes of incoherent flows observed in biological fluids.

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Cited by in corpus (76)

• Active Turbulence
• Universal scaling of active nematic turbulence
• Machine learning active-nematic hydrodynamics
• Lattice Boltzmann Methods and Active Fluids
• Insensitivity of active nematic dynamics to topological constraints
• Active turbulence in microswimmer suspensions -- the role of active hydrodynamic stress and volume exclusion
• Submersed Micropatterned Structures Control Active Nematic Flow, Topology and Concentration
• Optimal Control of Active Nematics
• Disordered collective motion in dense assemblies of persistent particles
• Phase transition to large scale coherent structures in 2d active matter turbulence
• Confinement controlled bend instability of three-dimensional active fluids
• Conformation and dynamics of a self-avoiding active flexible polymer
• Confinement-induced self-organization in growing bacterial colonies
• Active Brownian filaments with hydrodynamic interactions: conformations and dynamics
• Multi-scale statistics of turbulence motorized by active matter
• Ultrafast viscosity measurement with ballistic optical tweezers
• Kolmogorovian active turbulence of a sparse assembly of interacting swimmers
• Flow states and transitions of an active nematic in a three dimensional channel
• Twist-induced crossover from 2D to 3D turbulence in active nematics
• Topology of three-dimensional active nematic turbulence confined to droplets
• Analytical approach to chiral active systems: suppressed phase separation of interacting Brownian circle swimmers
• Data-driven discovery of active nematic hydrodynamics
• Natural Swarms in $3.99$ Dimensions
• Active nematics with anisotropic friction: the decisive role of the flow aligning parameter
• Role of friction in multidefect ordering
• Anomalous chained turbulence in actively driven flows on spheres
• Emergence and melting of active vortex crystals
• Cascade or not cascade? Energy transfer and elastic effects in active nematics
• Towards an analytical description of active microswimmers in clean and in surfactant-covered drops
• Geometry-Induced Dynamics of Confined Chiral Active Matter
• Condensate formation and multiscale dynamics in two-dimensional active suspensions
• Multi-scale control of active emulsion dynamics
• Confinement-induced accumulation and spontaneous de-mixing of microscopic active-passive mixtures
• Inertia drives a flocking phase transition in viscous active fluids
• Self-mixing in microtubule-kinesin active fluid from nonuniform to uniform distribution of activity
• Active Matter Invasion
• Geometry and mechanics of microdomains in growing bacterial colonies
• Ising-like critical behavior of vortex lattices in an active fluid
• Binding self-propelled topological defects in active turbulence
• A unified field theory of topological defects and non-linear local excitations
• Kinematics and dynamics of disclination lines in three-dimensional nematics
• Active turbulence and spontaneous phase separation in inhomogeneous extensile active gels
• Helical Flow States in Active Nematics
• Flow around topological defects in active nematic films
• Phase-field crystal description of active crystallites: elastic and inelastic collisions
• Two-fluid discrete Boltzmann model for compressible flows: based on Ellipsoidal Statistical Bhatnagar-Gross-Krook
• Motor crosslinking augments elasticity in active nematics
• Three-dimensional discrete Boltzmann models for compressible flows in and out of equilibrium
• Weakly nonlinear analysis of pattern formation in active suspensions
• Diffusiophoretic propulsion of an isotropic active colloidal particle near a finite-sized disk embedded in a planar fluid-fluid interface
• Hydrodynamic Enhancement of $p$-atic Defect Dynamics
• Activity induced isotropic-polar transition in active liquid crystals
• Vorticity phase separation and defect lattices in the isotropic phase of active liquid crystals
• Characteristic features of self-avoiding active Brownian polymers under linear shear flow
• Friction mediated phase transition in confined active nematics
• Uncovering novel phase transitions in dense dry polar active fluids using a lattice Boltzmann method
• Directed percolation in aerodynamics: resolving laminar separation bubble on airfoils
• Hydrodynamics of thermal active matter
• Multi-defect Dynamics in Active Nematics
• Flow patterns and defect dynamics of active nematics under an electric field
• Pattern selection and the route to turbulence in incompressible polar active fluids
• Fractal generation in a two-dimensional active-nematic fluid
• Self-sustained patchy turbulence in shear-thinning active fluids
• Analytical model for the motion and interaction of two-dimensional active nematic defects
• Cascades and Kolmogorov's lognormal scaling in two-dimensional bacterial turbulence
• Nematic liquid crystal flow driven by time-varying active surface anchoring
• Turbulence to order transitions in activity patterned active nematics
• Solute dispersion in pre-turbulent confined active nematics
• Emergence of rogue-like waves in a reaction-diffusion system: Stochastic output from deterministic dissipative dynamics
• Motility and self propulsion of active droplets
• Cell division sets a universal flow geometry in cell layers
• Stable and unstable flow regimes for active fluids in the periodic setting
• Dynamics of a simple model microswimmer in an anisotropic fluid: implications for alignment behavior and active transport in a nematic liquid crystal
• Active nematic flows confined in a two dimensional channel with hybrid alignment at the walls: a unified picture
• Nematic order condensation and topological defects in inertial active nematics
• Passive Janus Particles Are Self-propelled in Active Nematics