Stochastic Lagrangian perturbation of Lie transport and applications to fluids

N Besse - Nonlinear Analysis, 2023 - Elsevier
In this paper, we propose a novel stochastic Lagrangian formulation of dissipatively
perturbed Lie transport, which is based on the statistical generalized Cauchy invariants …

Gyrofluid modeling and phenomenology of low-βe Alfvén wave turbulence

T Passot, PL Sulem, E Tassi - Physics of Plasmas, 2018 - pubs.aip.org
A two-field reduced gyrofluid model including electron inertia, ion finite Larmor radius
corrections, and parallel magnetic field fluctuations is derived from the model of Brizard …

Exact law for homogeneous compressible Hall magnetohydrodynamics turbulence

N Andrés, S Galtier, F Sahraoui - Physical Review E, 2018 - APS
We derive an exact law for three-dimensional (3D) homogeneous compressible isothermal
Hall magnetohydrodynamic turbulence, without the assumption of isotropy. The Hall current …

Plasma-sheath transition in multi-fluid models with inertial terms under low pressure conditions: Comparison with the classical and kinetic theory

A Alvarez-Laguna, T Magin, M Massot… - Plasma Sources …, 2020 - iopscience.iop.org
We present high-order accuracy simulations of the plasma-sheath transition with an ion–
electron multi-fluid model that considers the electron inertial terms and the ion pressure …

Scale-to-scale energy transfer rate in compressible two-fluid plasma turbulence

S Banerjee, N Andrés - Physical Review E, 2020 - APS
We derive the exact relation for the energy transfer in three-dimensional compressible two-
fluid plasma turbulence. In the long-time limit, we obtain an exact law which expresses the …

[HTML][HTML] Interplay between Alfvén and magnetosonic waves in compressible magnetohydrodynamics turbulence

N Andrés, P Clark Di Leoni, PD Mininni, P Dmitruk… - Physics of …, 2017 - pubs.aip.org
Using spatio-temporal spectra, we show direct evidence of excitation of magnetosonic and
Alfvén waves in three-dimensional compressible magnetohydrodynamic turbulence at small …

An asymptotic preserving well-balanced scheme for the isothermal fluid equations in low-temperature plasmas at low-pressure

AA Laguna, T Pichard, T Magin, P Chabert… - Journal of …, 2020 - Elsevier
We present a novel numerical scheme for the efficient and accurate solution of the
isothermal two-fluid (electron+ ion) equations coupled to Poisson's equation for low …

Spatiotemporal analysis of waves in compressively driven magnetohydrodynamics turbulence

M Brodiano, N Andrés, P Dmitruk - The Astrophysical Journal, 2021 - iopscience.iop.org
Using direct numerical simulations (DNSs), the interaction between linear waves and
turbulence under the compressible magnetohydrodynamic (CMHD) approach was studied …

von Kármán–Howarth equation for three-dimensional two-fluid plasmas

N Andrés, PD Mininni, P Dmitruk, DO Gomez - Physical Review E, 2016 - APS
We derive the von Kármán–Howarth equation for a full three-dimensional incompressible
two-fluid plasma. In the long-time limit and for very large Reynolds numbers we obtain the …

Magnetic flux and helicity of magnetic clouds

P Démoulin, M Janvier, S Dasso - Solar Physics, 2016 - Springer
Magnetic clouds (MCs) are formed by flux ropes (FRs) launched from the Sun as part of
coronal mass ejections (CMEs). They carry away a large amount of magnetic flux and …