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Escobar, Diego and Ahedo Galilea, Eduardo (2008). Two-Dimensional Electron Model for a Hybrid Code of a Two-Stage Hall Thruster. "IEEE Transactions on Plasma Science", v. 36 (n. 5); pp. 2043-2057. ISSN 0093-3813. https://doi.org/10.1109/TPS.2008.2004227.
Title: | Two-Dimensional Electron Model for a Hybrid Code of a Two-Stage Hall Thruster |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | IEEE Transactions on Plasma Science |
Date: | 2008 |
ISSN: | 0093-3813 |
Volume: | 36 |
Subjects: | |
Freetext Keywords: | 2D model axisymmetric model chamber wall collection mode collisionless dynamics current-driving electrode drift-fluid equations electric current exchange emission mode equilibrium law floating mode heavy species hybrid code magnetic topology magnetized electrons parabolic differential equation particle-in-cell model perpendicular transport plasma propulsion plume divergence sheath model thrust efficiency two-dimensional electron model two-stage Hall thruster simulation wall los |
Faculty: | E.T.S.I. Aeronáuticos (UPM) |
Department: | Fundamentos Matemáticos de la Tecnología Aeronáutica [hasta 2014] |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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An axisymmetric model for magnetized electrons in a Hall thruster, to be used in combination with a particle-in-cell model for heavy species, is presented. The main innovation is the admission of exchanges of electric current at the chamber walls, thus making the model applicable to a larger variety of Hall thrusters. The model is fully 2-D for regular magnetic topologies. It combines an equilibrium law for collisionless dynamics along the direction parallel to the magnetic field with drift-fluid equations for perpendicular transport. These are coupled to sheath models for the interaction with different types of walls. The derivation of a parabolic differential equation for the temperature and the full computation of the electric field work improves clarity and accuracy over previous models. Simulations of a Hall thruster with an intermediate current-driving electrode, operating in emission, floating, and collection modes are presented. Enhancement of thrust efficiency is found for the electrode working in the high-emission mode if the magnetic field strength is adjusted appropriately. The two-stage floating mode presents lower wall losses, lower plume divergence, and higher efficiency than the equivalent one-stage configuration.
Item ID: | 1965 |
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DC Identifier: | https://oa.upm.es/1965/ |
OAI Identifier: | oai:oa.upm.es:1965 |
DOI: | 10.1109/TPS.2008.2004227 |
Official URL: | http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumb... |
Deposited by: | Memoria Investigacion |
Deposited on: | 02 Dec 2009 12:01 |
Last Modified: | 20 Apr 2016 11:46 |