ViDA: a Vlasov-DArwin solver for plasma physics at electron scales - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Plasma Physics Année : 2019

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

Oreste Pezzi
  • Fonction : Auteur
Francesco Valentini
  • Fonction : Auteur
Massimiliano Guarrasi
  • Fonction : Auteur
Enrico Camporeale
  • Fonction : Auteur
Gianfranco Brunetti
  • Fonction : Auteur
Alessandro Retinò
Pierluigi Veltri
  • Fonction : Auteur

Résumé

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 clean description of the plasma dynamics at fine spatial scales. The algorithm provides a low-noise description of proton and electron kinetic dynamics, by splitting in time the multi-advection Vlasov equation in phase space. Maxwell equations for the electric and magnetic fields are reorganized according to the Darwin approximation to remove light waves. Several numerical tests show that ViDA successfully reproduces the propagation of linear and nonlinear waves and captures the physics of magnetic reconnection. We also discuss preliminary tests of the parallelization algorithm efficiency, performed at CINECA on the Marconi-KNL cluster. ViDA will allow the running of Eulerian simulations of a non-relativistic fully kinetic collisionless plasma and it is expected to provide relevant insights into important problems of plasma astrophysics such as, for instance, the development of the turbulent cascade at electron scales and the structure and dynamics of electron-scale magnetic reconnection, such as the electron diffusion region.
Fichier principal
Vignette du fichier
1905.02953.pdf (2.39 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-02368753 , version 1 (19-11-2020)

Identifiants

Citer

Oreste Pezzi, Giulia Cozzani, Francesco Califano, Francesco Valentini, Massimiliano Guarrasi, et al.. ViDA: a Vlasov-DArwin solver for plasma physics at electron scales. Journal of Plasma Physics, 2019, 85 (5), pp.905850506. ⟨10.1017/S0022377819000631⟩. ⟨hal-02368753⟩
52 Consultations
58 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More