Fluid simulations of plasma turbulence at ion scales: comparison with Vlasov-Maxwell simulations

@article{Perrone2018FluidSO,
  title={Fluid simulations of plasma turbulence at ion scales: comparison with Vlasov-Maxwell simulations},
  author={Denise Perrone and Thierry Passot and D. Laveder and Francesco Valentini and P. L. Sulem and Ioannis Zouganelis and Pierluigi Veltri and Sergio Servidio},
  journal={arXiv: Plasma Physics},
  year={2018}
}
Comparisons are presented between a hybrid Vlasov-Maxwell (HVM) simulation of turbulence in a collisionless plasma and fluid reductions. These include Hall-magnetohydrodynamics (HMHD) and Landau fluid (LF) or FLR-Landau fluid (FLR-LF) models that retain pressure anisotropy and low-frequency kinetic effects such as Landau damping and, for the last model, finite Larmor radius (FLR) corrections. The problem is considered in two space dimensions, when initial conditions involve moderate-amplitude… 

Energy conversion in turbulent weakly collisional plasmas: Eulerian hybrid Vlasov-Maxwell simulations

Kinetic simulations based on the Eulerian Hybrid Vlasov-Maxwell (HVM) formalism permit the examination of plasma turbulence with useful resolution of the proton velocity distribution function (VDF).

Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations

Plasma dynamics is a multi-scale problem that involves many spatial and temporal scales. Turbulence connects the disparate scales in this system through a cascade that is established by nonlinear

Electron-Only Reconnection in Plasma Turbulence

Hybrid-Vlasov–Maxwell simulations of magnetized plasma turbulence including non-linear electron-inertia effects in a generalized Ohm's law are presented. When fluctuation energy is injected on scales

ViDA: a Vlasov–DArwin solver for plasma physics at electron scales

We present a Vlasov–DArwin numerical code (ViDA) specifically designed to address plasma physics problems, where small-scale high accuracy is requested even during the nonlinear regime to guarantee a

Dissipation of Kinetic Alfvénic Turbulence as a Function of Ion and Electron Temperature Ratios

Two-and-one-half dimensional particle-in-cell simulations of the forward cascade and dissipation of decaying kinetic Alfvénic turbulence have been carried out on a model of a collisionless,

Dissipation measures in weakly collisional plasmas

The physical foundations of the dissipation of energy and the associated heating in weakly collisional plasmas are poorly understood. Here, we compare and contrast several measures that have been

Proton–Proton Collisions in the Turbulent Solar Wind: Hybrid Boltzmann–Maxwell Simulations

The mechanism of heating for hot, dilute, and turbulent plasmas represents a long-standing problem in space physics, whose implications concern both near-Earth environments and astrophysical systems.

An introductory guide to fluid models with anisotropic temperatures. Part 1. CGL description and collisionless fluid hierarchy

We present a detailed guide to advanced collisionless fluid models that incorporate kinetic effects into the fluid framework, and that are much closer to the collisionless kinetic description than

Turbulence-Driven Ion Beams in the Magnetospheric Kelvin-Helmholtz Instability.

Observations suggest the nonlinear wave-particle interaction as one possible mechanism for the energy dissipation in space plasmas for the first time.

Local and global properties of energy transfer in models of plasma turbulence

The nature of the turbulent energy transfer rate is studied using direct numerical simulations of weakly collisional space plasmas. This is done comparing results obtained from hybrid Vlasov–Maxwell

References

SHOWING 1-10 OF 88 REFERENCES

Fluid simulations of ion scale plasmas with weakly distorted magnetic fields

Three-dimensional simulations of turbulence in collisionless plasmas are presented, using a fluid model that extends the anisotropic MHD to scales of the order of the ion gyroradius and below in

Landau fluid closures with nonlinear large-scale finite Larmor radius corrections for collisionless plasmas

With the aim to develop a tool for simulating turbulence in collisionless magnetized plasmas, fluid models retaining low-frequency kinetic effects such as Landau damping and finite Larmor radius

A kinetic model of plasma turbulence

A Hybrid Vlasov–Maxwell (HVM) model is presented and recent results about the link between kinetic effects and turbulence are reviewed. Using five-dimensional (2D in space and 3D in the velocity

Hybrid Vlasov-Maxwell simulations of two-dimensional turbulence in plasmas

Turbulence in plasmas is a very challenging problem since it involves wave-particle interactions, which are responsible for phenomena such as plasma dissipation, acceleration mechanisms, heating,

Vlasov simulations of kinetic Alfvén waves at proton kinetic scales

Kinetic Alfven waves represent an important subject in space plasma physics, since they are thought to play a crucial role in the development of the turbulent energy cascade in the solar wind plasma

VLASOV SIMULATIONS OF MULTI-ION PLASMA TURBULENCE IN THE SOLAR WIND

Hybrid Vlasov–Maxwell simulations are employed to investigate the role of kinetic effects in a two-dimensional turbulent multi-ion plasma, composed of protons, alpha particles, and fluid electrons.

Reconnection and small-scale fields in 2D-3V hybrid-kinetic driven turbulence simulations

The understanding of the fundamental properties of turbulence in collisionless plasmas, such as the solar wind, is a frontier problem in plasma physics. In particular, the occurrence of magnetic

ASTROPHYSICAL GYROKINETICS: KINETIC AND FLUID TURBULENT CASCADES IN MAGNETIZED WEAKLY COLLISIONAL PLASMAS

This paper presents a theoretical framework for understanding plasma turbulence in astrophysical plasmas. It is motivated by observations of electromagnetic and density fluctuations in the solar

Fully Kinetic versus Reduced-kinetic Modeling of Collisionless Plasma Turbulence

We report the results of a direct comparison between different kinetic models of collisionless plasma turbulence in two spatial dimensions. The models considered include a first-principles fully

Three-dimensional Simulations and Spacecraft Observations of Sub-ion Scale Turbulence in the Solar Wind: Influence of Landau Damping

Three-dimensional nonlinear finite Larmor radius (FLR)–Landau fluid simulations, which include some small-scale kinetic effects, are performed to explore the nature of the sub-ion scale turbulence in
...