2020 CAP Virtual Sessions / Sessions virtuelle de l'ACP 2020

Turbulence and anomalous electron transport in the Electron Cyclotron Drift Instability

Not scheduled

15m

Virtual Platforms

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle) Plasma Physics / Physique des plasmas (DPP) DPP-1 : Plasma Physics Symposium

Speaker

Ms M. Jimenez (Department of Physics and Engineering Physics, University of Saskatchewan)

Description

Abstract
The nonlinear evolution of the The Electron Cyclotron Drift Instability (ECDI)
driven by the electron EB drift in partially magnetized plasmas and anomalous
electron transport in two dimensions are studied using particle-in-cell (PIC) simula-
tions. PIC simulations were performed for the parameters typical of the Hall-e?ect
thruster in the two-dimensional azimuthal-radial geometry to investigate the role
of the boundaries conditions, electric and magnetic ?eld magnitudes, sheath losses
and ?nite-length on the mode development and anomalous electron current. The
saturated state of turbulence and resulting anomalous electron current are studied.
Nature of the anomalous current and contribution of di?erent wavelength are inves-
tigated. It is shown that the magnitude of the anomalous current can be explained
as a EB drift of magnetized electrons in
uctuating ?elds.