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

Part of: Focus on Plasma Astrophysics

Published online by Cambridge University Press:  09 October 2019

Oreste Pezzi Open the ORCID record for Oreste Pezzi [Opens in a new window] ,
Giulia Cozzani Open the ORCID record for Giulia Cozzani [Opens in a new window] ,
Francesco Califano Open the ORCID record for Francesco Califano [Opens in a new window] ,
Francesco Valentini Open the ORCID record for Francesco Valentini [Opens in a new window] ,
Massimiliano Guarrasi Open the ORCID record for Massimiliano Guarrasi [Opens in a new window] ,
Enrico Camporeale Open the ORCID record for Enrico Camporeale [Opens in a new window] ,
Gianfranco Brunetti Open the ORCID record for Gianfranco Brunetti [Opens in a new window] ,
Alessandro Retinò Open the ORCID record for Alessandro Retinò [Opens in a new window]  and
Pierluigi Veltri Open the ORCID record for Pierluigi Veltri [Opens in a new window]
Oreste Pezzi*
Affiliation:
Gran Sasso Science Institute, Viale F. Crispi 7, I-67100 LAquila, Italy INFN/Laboratori Nazionali del Gran Sasso, Via G. Acitelli 22, I-67100 Assergi (AQ), Italy Dipartimento di Fisica, Università della Calabria, Via P. Bucci, I-87036 Arcavacata di Rende (CS), Italy
Giulia Cozzani
Affiliation:
Dipartimento di Fisica ‘E. Fermi’, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy Laboratoire de Physique des Plasmas, CNRS/École Polytechnique/Sorbonne Université, Université Paris Sud, Observatoire de Paris, 91128 Palaiseau, France
Francesco Califano
Affiliation:
Dipartimento di Fisica ‘E. Fermi’, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
Francesco Valentini
Affiliation:
Dipartimento di Fisica, Università della Calabria, Via P. Bucci, I-87036 Arcavacata di Rende (CS), Italy
Massimiliano Guarrasi
Affiliation:
CINECA Interuniversity Consortium, Via Magnanelli 6/3, 40033 Casalecchio di Reno, Italy
Enrico Camporeale
Affiliation:
CIRES, University of Colorado, Boulder, CO, USA Center for Mathematics and Computer Science (CWI), 1090 GB Amsterdam, The Netherlands
Gianfranco Brunetti
Affiliation:
Dipartimento di Fisica, Università della Calabria, Via P. Bucci, I-87036 Arcavacata di Rende (CS), Italy
Alessandro Retinò
Affiliation:
Laboratoire de Physique des Plasmas, CNRS/École Polytechnique/Sorbonne Université, Université Paris Sud, Observatoire de Paris, 91128 Palaiseau, France
Pierluigi Veltri
Affiliation:
Dipartimento di Fisica, Università della Calabria, Via P. Bucci, I-87036 Arcavacata di Rende (CS), Italy
*
†Email address for correspondence: oreste.pezzi@gssi.it
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Abstract

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.

Keywords

space plasma physicsplasma simulationplasma waves
Type
Research Article
Information
Journal of Plasma Physics , Volume 85 , Issue 5 , October 2019 , 905850506
Copyright
© Cambridge University Press 2019 

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