A Multi Water Bag model of drift kinetic electron plasma

Pierre Morel; Florent Dreydemy Ghiro; Vincent Berionni; David Coulette; Nicolas Besse; Özgür D. Gürcan

doi:10.1140/epjd/e2014-50165-8

2023 Impact factor 1.5

Atomic, Molecular, Optical and Plasma Physics

Topical issue: Theory and Applications of the Vlasov Equation. Guest editors: Francesco Pegoraro, Francesco Califano, Giovanni Manfredi and Philip J. Morrison

Eur. Phys. J. D (2014) 68: 220
https://doi.org/10.1140/epjd/e2014-50165-8

Regular Article

A Multi Water Bag model of drift kinetic electron plasma^a

Pierre Morel¹^,2^,3^,4^b, Florent Dreydemy Ghiro¹^,2^,3^,4, Vincent Berionni³^,2^,1^,4, David Coulette⁵, Nicolas Besse⁵ and Özgür D. Gürcan¹^,2^,3^,4

¹ Université Paris-Sud, UMR 7648, Laboratoire de Physique des Plasmas, 91128 Palaiseau, France
² CNRS, UMR 7648, Laboratoire de Physique des Plasmas, 91128 Palaiseau, France
³ École Polytechnique, UMR 7648, Laboratoire de Physique des Plasmas, 91128 Palaiseau, France
⁴ Sorbonne Universités, UPMC Université Paris 06, UMR 7648, Laboratoire de Physique des Plasmas, 91128 Palaiseau, France
⁵ Université Lorraine, CNRS, Inst Jean Lamour, UMR 7198, 54506 Vandœuvre Les Nancy, France

^b e-mail: pierre.morel@lpp.polytechnique.fr

Received: 28 February 2014
Received in final form: 2 June 2014
Published online: 12 August 2014

Abstract

A Multi Water Bag model is proposed for describing drift kinetic plasmas in a magnetized cylindrical geometry, relevant for various experimental devices, solar wind modeling... The Multi Water Bag (MWB) model is adapted to the description of a plasma with kinetic electrons as well as an arbitrary number of kinetic ions. This allows to describe the kinetic dynamics of the electrons, making possible the study of electron temperature gradient (ETG) modes, in addition to the effects of non adiabatic electrons on the ion temperature gradient (ITG) modes, that are of prime importance in the magnetized plasmas micro-turbulence [X. Garbet, Y. Idomura, L. Villard, T.H. Watanabe, Nucl. Fusion 50, 043002 (2010); J.A. Krommes, Ann. Rev. Fluid Mech. 44, 175 (2012)]. The MWB model is shown to link kinetic and fluid descriptions, depending on the number of bags considered. Linear stability of the ETG modes is presented and compared to the existing results regarding cylindrical ITG modes [P. Morel, E. Gravier, N. Besse, R. Klein, A. Ghizzo, P. Bertrand, W. Garbet, Ph. Ghendrih, V. Grandgirard, Y. Sarazin, Phys. Plasmas 14, 112109 (2007)].

Contribution to the Topical Issue “Theory and Applications of the Vlasov Equation”, edited by Francesco Pegoraro, Francesco Califano, Giovanni Manfredi and Philip J. Morrison.

© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2014