Anomalous transport induced by sheath instability in Hall effect thrusters
Open accessAbstract
It is well recognized to ascribe the anomalous cross-field conductivity inside Hall-effect thrusters to fluctuation-induced transport due to gradient-driven instabilities (Rayleigh or electron drift) and to electron-wall interaction (near-wall conductivity). In this letter, we have performed numerical experiments showing the possibility of another mechanism inducing azimuthal fluctuations: the lateral sheath instability. It is created by a negative differential resistance of the current-voltage I-V characteristic of the floating wall as a consequence of high secondary electron emission. The contribution from this effect to the anomalous axial current is calculated and it accounts of more than 80% of the experimental value.
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Hybrid models represent the best compromise in terms of accuracy and computational cost for modeling plasma thruster plume expansion and its interaction with the spacecraft.
“Hybrid models 225-234 have therefore emerged in this context, as they represent the best compromise in terms of accuracy and computational cost for modeling the plasma thruster plume expansion and its interaction with the spacecraft.”
From Plasma propulsion modeling with particle-based algorithms (2023) · cites this paper as [232]
Hybrid models feature a kinetic treatment of the ion species (and in some cases of the neutrals as well) so that CEX collisions are correctly captured, and a fluid modeling of the fastest species, the electrons.
“In fact, they feature a kinetic treatment of the ion species (and in some cases of the neutrals as well) so that CEX collisions are correctly captured, and a fluid modeling of the fastest species, the electrons, which are subject to conservation equations.”
From Plasma propulsion modeling with particle-based algorithms (2023) · cites this paper as [232]
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Self-citationPlasma propulsion modeling with particle-based algorithms
Taccogna, F., Cichocki, F., Eremin, D., Fubiani, G., & Garrigues, L. (2023) · Journal of Applied Physics · doi:10.1063/5.0153862 · Cited by 29 · see citing works
Self-citation
- Authors
- Taccogna, F., Longo, S., Capitelli, M., & Schneider, R.
- Affiliations
- Institute of Inorganic Methodologies and Plasmas (IT)
- Max Planck Institute for Plasma Physics - Greifswald (DE)
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2009-06-22
- Volume
- 94
- Issue
- 25
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2093658324
- Cited by
- 58
- References
- 0
- Citations by year
- 2026: 3 · 2025: 2 · 2024: 2 · 2023: 8 · 2022: 2 · 2021: 4 · 2020: 6 · 2019: 3 · 2018: 4 · 2017: 4 · 2016: 3 · 2015: 3 · 2014: 2 · 2013: 3 · 2012: 6
- FWCI
- 2.38
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- cc-by
- Locations
- Applied Physics Letters (publishedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion, cc-by)
- CINECA IRIS Institutional Research Information System (University of Bari Aldo Moro) (submittedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Plasma Diagnostics and Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Vacuum and Plasma Arcs
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Magnetic confinement fusion research
- Keywords
- Hall thruster, anomalous transport, negative differential resistance, secondary electron emission
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