Isotropy vs anisotropy in small-scale turbulence

Abstract

The decay of large-scale anisotropies in small-scale turbulent flow is investigated. By introducing two different kinds of estimators we discuss the relation between the presence of a hierarchy for the isotropic and the anisotropic scaling exponents and the persistence of anisotropies. Direct measurements from a channel flow numerical simulation are presented.

7 pages, 2 figures

References in corpus (6)

• Universality and saturation of intermittency in passive scalar turbulence
• Persistence of small-scale anisotropies and anomalous scaling in a model of magnetohydrodynamics turbulence
• Anisotropic Homogeneous Turbulence: hierarchy and intermittency of scaling exponents in the anisotropic sectors
• Nonperturbative Spectrum of Anomalous Scaling Exponents in the Anisotropic Sectors of Passively Advected Magnetic Fields
• On statistically stationary homogeneous shear turbulence
• Probing structures in channel flow through SO(3) and SO(2) decomposition

Cited by in corpus (18)

• Anisotropy in Turbulent Flows and in Turbulent Transport
• Large scale flow effects, energy transfer, and self-similarity on turbulence
• Derivative moments in turbulent shear flows
• Angular momentum transport and large eddy simulations in magnetorotational turbulence: the small Pm limit
• Anomalous and dimensional scaling in anisotropic turbulence
• The decay of homogeneous anisotropic turbulence
• Universality of anisotropic fluctuations from numerical simulations of turbulent flows
• Scaling Exponents in Anisotropic Hydrodynamic Turbulence
• Small-scale anisotropy and intermittency in high and low-latitude solar wind
• Anisotropic fluctuations in turbulent sheared flows
• Statistical analysis of the velocity and scalar fields in reacting turbulent wall-jets
• Time irreversibility in reversible shell models of turbulence
• Time irreversibility and multifractality of power along single particle trajectories in turbulence
• Anomalous scaling of passive scalars in rotating flows
• Intermittency in the isotropic component of helical and non-helical turbulent flows
• Passive scalars: mixing, diffusion and intermittency in helical and non-helical rotating turbulence
• The influence of energy-containing scales on the distribution of spectral energy transfers
• Transition to inverse cascade in turbulent rotating convection in absence of the large-scale vortex