Synchronization to big data: Nudging the Navier-Stokes equations for data assimilation of turbulent flows

P Clark Di Leoni, A Mazzino, L Biferale - Physical Review X, 2020 - APS
Nudging is an important data assimilation technique where partial field measurements are
used to control the evolution of a dynamical system and/or to reconstruct the entire phase …

Quantitative experimental observation of weak inertial-wave turbulence

E Monsalve, M Brunet, B Gallet, PP Cortet - Physical Review Letters, 2020 - APS
We report the quantitative experimental observation of the weak inertial-wave turbulence
regime of rotating turbulence. We produce a statistically steady homogeneous turbulent flow …

Coherent structures and extreme events in rotating multiphase turbulent flows

L Biferale, F Bonaccorso, IM Mazzitelli… - Physical Review X, 2016 - APS
By using direct numerical simulations (DNS) at unprecedented resolution, we study
turbulence under rotation in the presence of simultaneous direct and inverse cascades. The …

Inertial wave turbulence driven by elliptical instability

T Le Reun, B Favier, AJ Barker, M Le Bars - Physical Review Letters, 2017 - APS
The combination of elliptical deformation of streamlines and vorticity can lead to the
destabilization of any rotating flow via the elliptical instability. Such a mechanism has been …

Energy transfer in turbulence under rotation

M Buzzicotti, H Aluie, L Biferale, M Linkmann - Physical Review Fluids, 2018 - APS
It is known that rapidly rotating turbulent flows are characterized by the emergence of
simultaneous upscale and downscale energy transfer. Indeed, both numerics and …

Kinetic turbulence in astrophysical plasmas: waves and/or structures?

D Grošelj, CHK Chen, A Mallet, R Samtaney… - Physical Review X, 2019 - APS
The question of the relative importance of coherent structures and waves has for a long time
attracted a great deal of interest in astrophysical plasma turbulence research, with a more …

Experimental study of the nonlinear saturation of the elliptical instability: inertial wave turbulence versus geostrophic turbulence

T Le Reun, B Favier, M Le Bars - Journal of Fluid Mechanics, 2019 - cambridge.org
In this paper, we present an experimental investigation of the turbulent saturation of the flow
driven by the parametric resonance of inertial waves in a rotating fluid. In our set-up, a half …

Disentangling inertial waves from eddy turbulence in a forced rotating-turbulence experiment

A Campagne, B Gallet, F Moisy, PP Cortet - Physical Review E, 2015 - APS
We present a spatiotemporal analysis of a statistically stationary rotating-turbulence
experiment, aiming to extract a signature of inertial waves and to determine the scales and …

Dual constant-flux energy cascades to both large scales and small scales

A Pouquet, R Marino, PD Mininni, D Rosenberg - Physics of Fluids, 2017 - pubs.aip.org
In this paper, we present an overview of concepts and data concerning inverse cascades of
excitation towards scales larger than the forcing scale in a variety of contexts, from two …

Quantitative estimation of effective viscosity in quantum turbulence

V Shukla, PD Mininni, G Krstulovic, PC Di Leoni… - Physical Review A, 2019 - APS
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 …