Fully turbulent flows are characterized by intermittent formation of very localized and intense
velocity gradients. These gradients can be orders of magnitude larger than their typical …

In turbulent flows, kinetic energy is transferred from large spatial scales to small ones, where
it is converted to heat by viscosity. For strong turbulence, ie, high Reynolds numbers …

We collect and describe the observed geometrical and dynamical properties of turbulence in
quantum fluids, particularly superfluid helium and atomic condensates for which more …

We study the statistics of velocity circulation in two-dimensional classical and quantum
turbulence. We perform numerical simulations of the incompressible Navier-Stokes and the …

The three-dimensional incompressible Navier–Stokes equations, which describe the motion
of many fluids, are the cornerstones of many physical and engineering sciences. However, it …

Quantum vortices are a core element of superfluid dynamics and elusively hold the keys to
our understanding of energy dissipation in these systems. We show that we are able to …

The energy spectrum of incompressible turbulence is known to reveal a pileup of energy at
those high wavenumbers where viscous dissipation begins to act. It is called the bottleneck …

We propose and test a method to interpolate sparsely sampled signals by a stochastic
process with a broad range of spatial and/or temporal scales. To this end, we extend the …

Since we still lack a theory of classical turbulence, attention has focused on the conceptually
simpler turbulence in quantum fluids. Reaching a better understanding of the quantum case …

The intermittency of turbulent superfluid helium is explored systematically in a steady wake
flow from 1.28 K up to T> 2.18 K using a local anemometer. This temperature range spans …