Mechanism(s) of the Anomalous Electron Current and Coherent Structures in Magnetized ExB Discharges

reportActive / Technical Report | Accesssion Number: AD1230366 | Open PDF

Abstract:

This research develops theoretical models and numerical simulations tools to explain, predict, and control coherent structures and related anomalous electron current in the ExB devices such as Hall thrusters, magnetrons and Penning discharges. Four inter-related topics are addressed in this period: axial large scale ionization modes (breathing modes) in Hall thrusters; azimuthal modes, instabilities, and transport related to the electron-cyclotron drift instabilities in Hall thrusters; azimuthal instabilities and structures in cylindrical Penning discharge; and transonic accelerating flows formed by the Laval nozzle effect in the devices with magnetic nozzle and geometric apertures devices.

Author(s):
Smolyakov, Andrei
Author Organization(s):
SASKATCHEWAN UNIV SASKATOON
Funding Organization(s):
AIR FORCE OFFICE OF SCIENTIFIC RESEARCH ARLINGTON VA, ARLINGTON, VA
Document Type:
Technical Report/Final Report
Publication Date:
2023 Jan 04
Pagination:
15

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution Code:
A - Approved For Public Release
Distribution Statement: Public Release.
Copyright: Not Copyrighted

RECORD

Collection: TRECMS
Subject Terms
Keyword(s):
anomalous electron currents, coherent structures, magnetized ExB discharges, theoretical models, numerical simulations, cylindrical Penning discharges, axial large scale ionization modes, breathing modes, azimuthal modes, electron-cyclotron drift instabilities, azimuthal instabilities, Laval nozzle effect, magnetic nozzles, geometric apertures, pde(partial derivatives), ion kinetic effects
Subject Categories:
Propulsion, Engines and Fuels; Propulsion, Engines and Fuels
Creation Date:
2024 Jun 24
Update Date:
2024 Jun 27