Cascades and transitions in turbulent flows
A Alexakis, L Biferale - Physics Reports, 2018 - Elsevier
Turbulent flows are characterized by the non-linear cascades of energy and other inviscid
invariants across a huge range of scales, from where they are injected to where they are …
invariants across a huge range of scales, from where they are injected to where they are …
Vortex clustering, polarisation and circulation intermittency in classical and quantum turbulence
The understanding of turbulent flows is one of the biggest current challenges in physics, as
no first-principles theory exists to explain their observed spatio-temporal intermittency …
no first-principles theory exists to explain their observed spatio-temporal intermittency …
Rotating quantum wave turbulence
Turbulence under strong influence of rotation is described as an ensemble of interacting
inertial waves across a wide range of length scales. In macroscopic quantum condensates …
inertial waves across a wide range of length scales. In macroscopic quantum condensates …
Quantitative estimation of effective viscosity in quantum turbulence
We study freely decaying quantum turbulence by performing high-resolution numerical
simulations of the Gross-Pitaevskii equation (GPE) in the Taylor-Green geometry. We use …
simulations of the Gross-Pitaevskii equation (GPE) in the Taylor-Green geometry. We use …
Decay of counterflow turbulence in superfluid 4He
We summarize recent experiments on thermal counterflow turbulence in superfluid 4 He,
emphasizing the observation of turbulence in the normal fluid and its effect on the decay …
emphasizing the observation of turbulence in the normal fluid and its effect on the decay …
Dissipation in quantum turbulence in superfluid above 1 K
There are two commonly discussed forms of quantum turbulence in superfluid He 4 above 1
K: in one there is a random tangle of quantized vortex lines, existing in the presence of a …
K: in one there is a random tangle of quantized vortex lines, existing in the presence of a …
Statistics of turbulence and intermittency enhancement in superfluid counterflow
We report a detailed analysis of the energy spectra, second-and high-order structure
functions of velocity differences in superfluid He 4 counterflow turbulence, measured in a …
functions of velocity differences in superfluid He 4 counterflow turbulence, measured in a …
Dissipation of Quasiclassical Turbulence in Superfluid
We compare the decay of turbulence in superfluid He 4 produced by a moving grid to the
decay of turbulence created by either impulsive spin-down to rest or by intense ion injection …
decay of turbulence created by either impulsive spin-down to rest or by intense ion injection …
Dynamics of the density of quantized vortex lines in superfluid turbulence
The quantization of vortex lines in superfluids requires the introduction of their density L (r, t)
in the description of quantum turbulence. The space homogeneous balance equation for L …
in the description of quantum turbulence. The space homogeneous balance equation for L …
Superfluid helium in three-dimensional counterflow differs strongly from classical flows: anisotropy on small scales
Three-dimensional anisotropic turbulence in classical fluids tends towards isotropy and
homogeneity with decreasing scales, allowing—eventually—the abstract model of …
homogeneity with decreasing scales, allowing—eventually—the abstract model of …