Coexistence of active and hydrodynamic turbulence in two dimensional active nematics
arXiv:2210.16529 · doi:10.1103/PhysRevLett.129.218001
Abstract
In active nematic liquid crystals activity is able to drive chaotic spatiotemporal flows referred to as active turbulence. Active turbulence has been characterized through theoretical and experimental work as a low Reynolds number phenomenon. We show that, in two-dimensions, the active forcing alone is able to trigger hydrodynamic turbulence leading to the coexistence of active and inertial turbulence. This type of flows develops for sufficiently active and extensile flow-aligning nematics. We observe that the combined effect of an extensile nematic and large values of the flow-aligning parameter leads to a broadening of the elastic energy spectrum that promotes a growth of kinetic energy able to trigger an inverse energy cascade.
References in corpus (20)
- The Mechanics and Statistics of Active Matter
- Meso-scale turbulence in living fluids
- Rheology of Active-Particle Suspensions
- Cascades and transitions in turbulent flows
- Turning bacteria suspensions into a "superfluid"
- Active Turbulence
- Defect dynamics in active nematics
- Growing condensate in two-dimensional turbulence
- Sheared active fluids: thickening, thinning and vanishing viscosity
- Universal scaling of active nematic turbulence
- Excitable Patterns in Active Nematics
- Minimal continuum theories of structure formation in dense active fluids
- Active turbulence in active nematics
- Universal profile of the vortex condensate in two-dimensional turbulence
- Phase transition to large scale coherent structures in 2d active matter turbulence
- Anomalous diffusion and Lévy walks distinguish active from inertial turbulence
- Multi-scale statistics of turbulence motorized by active matter
- On the Peterlin approximation for turbulent flows of polymer solutions
- Bacteria hinder large-scale transport and enhance small-scale mixing in time-periodic flows
- Driven active and passive nematics
Cited by in corpus (10)
- Pattern formation by turbulent cascades
- Intermittency, fluctuations and maximal chaos in an emergent universal state of active turbulence
- Spontaneous Self-Constraint in Active Nematic Flows
- Dynamics of a Passive Droplet in Active Turbulence
- Inertia drives concentration-wave turbulence in swimmer suspensions
- Coexistence of defect morphologies in three dimensional active nematics
- Simulating dynamics of ellipsoidal particles using lattice Boltzmann method
- Cascades and Kolmogorov's lognormal scaling in two-dimensional bacterial turbulence
- Emergence of Local Ordering and Mesoscale Giant Number Fluctuations in Active Turbulence
- Dynamical arrest in active nematic turbulence