Three-dimensional simulations of solar wind turbulence with the hybrid code CAMELIA

TL;DR

This paper uses high-resolution 3D hybrid simulations with CAMELIA to study solar wind turbulence, producing spectra that match observations and demonstrating the code's efficiency and accuracy across multiple scales.

Contribution

It presents the first detailed 3D spectral analysis of solar wind turbulence using the hybrid code CAMELIA, confirming its reliability and extending previous 2D results.

Findings

Produced well-defined turbulent spectra with power laws

Results agree with previous 2D simulations and solar wind observations

Demonstrated CAMELIA's efficiency and accuracy in 3D simulations

Abstract

We investigate the spectral properties of plasma turbulence from fluid to sub-ion scales by means of high-resolution three-dimensional (3D) numerical simulations performed with the hybrid particle-in-cell (HPIC) code CAMELIA. We produce extended turbulent spectra with well-defined power laws for the magnetic, ion bulk velocity, density, and electric fluctuations. The present results are in good agreement with previous two-dimensional (2D) HPIC simulations, especially in the kinetic range of scales, and reproduce several features observed in solar wind spectra. By providing scaling tests on many different architectures and convergence studies, we prove CAMELIA to represent a very efficient, accurate and reliable tool for investigating the develpoment of the turbulent cascade in the solar wind, being able to cover simultaneously several decades in wavenumber, also in 3D.