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 …

On the existence of fast modes in compressible magnetohydrodynamic turbulence

Z Gan, H Li, X Fu, S Du - The Astrophysical Journal, 2022 - iopscience.iop.org
We study the existence and properties of fast magnetosonic modes in 3D compressible
MHD turbulence by carrying out a number of simulations with compressible and …

Turbulence in rotating Bose-Einstein condensates

J Amette Estrada, ME Brachet, PD Mininni - Physical Review A, 2022 - APS
Since the idea of quantum turbulence was first proposed by Feynman and later realized in
experiments of superfluid helium and Bose-Einstein condensates, much emphasis has been …

A vortex filament tracking method for the Gross–Pitaevskii model of a superfluid

A Villois, G Krstulovic, D Proment… - Journal of Physics A …, 2016 - iopscience.iop.org
We present an accurate and robust numerical method to track quantised vortex lines in a
superfluid described by the Gross–Pitaevskii equation. By utilising the pseudo-vorticity field …

GPU parallelization of a hybrid pseudospectral geophysical turbulence framework using CUDA

D Rosenberg, PD Mininni, R Reddy, A Pouquet - Atmosphere, 2020 - mdpi.com
An existing hybrid MPI-OpenMP scheme is augmented with a CUDA-based fine grain
parallelization approach for multidimensional distributed Fourier transforms, in a well …

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 …

Helicity, topology, and Kelvin waves in reconnecting quantum knots

P Clark Di Leoni, PD Mininni, ME Brachet - Physical Review A, 2016 - APS
Helicity is a topological invariant that measures the linkage and knottedness of lines, tubes,
and ribbons. As such, it has found myriads of applications in astrophysics, fluid dynamics …

Dual cascade and dissipation mechanisms in helical quantum turbulence

P Clark di Leoni, PD Mininni, ME Brachet - Physical Review A, 2017 - APS
While in classical turbulence helicity depletes nonlinearity and can alter the evolution of
turbulent flows, in quantum turbulence its role is not fully understood. We present numerical …

Thermalized Abrikosov lattices from decaying turbulence in rotating BECs

J Amette Estrada, ME Brachet, PD Mininni - AVS Quantum Science, 2022 - pubs.aip.org
We study the long-time decay of rotating turbulence in Bose–Einstein condensates (BECs).
We consider the Gross–Pitaevskii equation in a rotating frame of reference and review …

Investigation of resonances in gravity-capillary wave turbulence

Q Aubourg, N Mordant - Physical Review Fluids, 2016 - APS
We report experimental results on nonlinear wave coupling in surface wave turbulence on
water at scales close to the crossover between surface gravity waves and capillary waves …