200W Hall Thruster Discharge Oscillations with Xe and Kr Propellant

2011 ◽  
Author(s):  
David Liu ◽  
Richard Huffman ◽  
Richard Branam ◽  
William Hargus
Keyword(s):  
Hall Thruster

A performance study of a low power Hall thruster

1997 ◽  
Author(s):  
W. Hargus, Jr. ◽  
R. Cedolin ◽  
N. Meezan ◽  
M. Cappelli ◽  
W. Hargus, Jr. ◽  
...  
Keyword(s):  
Low Power ◽  
Hall Thruster ◽  
Performance Study ◽  
A Performance

PARTICLE-IN-CELL NUMERICAL SIMULATION OF THE PHALL-IIc HALL THRUSTER

2019 ◽  
Author(s):  
LEONARDO BRAGA ◽  
Rodrigo Cerda ◽  
Rodrigo Alkimim Faria Alves
Keyword(s):  
Numerical Simulation ◽  
Hall Thruster ◽  
Particle In Cell

Performance of an 8 kW Hall Thruster

2000 ◽  
Author(s):  
B. Pote ◽  
V. Hruby ◽  
J. Monheiser
Keyword(s):  
Hall Thruster

Growth of the lower hybrid drift instability in the plume of a magnetically shielded Hall thruster

2021 ◽  
Vol 129 (19) ◽  
pp. 193301
Author(s):  
Ioannis G. Mikellides ◽  
Alejandro Lopez Ortega
Keyword(s):  
Hall Thruster ◽  
Lower Hybrid ◽  
Drift Instability

Extended channel Hall thruster for air-breathing electric propulsion

2021 ◽  
Vol 130 (5) ◽  
pp. 053306
Author(s):  
Francesco Marchioni ◽  
Mark A. Cappelli
Keyword(s):  
Electric Propulsion ◽  
Hall Thruster ◽  
Air Breathing

Low-frequency-oscillation characteristics of ionization distribution in Hall thruster channels

Vacuum ◽  
2021 ◽  
pp. 110320
Author(s):  
Tianyuan Ji ◽  
Liqiu Wei ◽  
Haifeng Lu ◽  
Shangmin Wang ◽  
Ning Guo ◽  
...  
Keyword(s):  
Low Frequency ◽  
Hall Thruster ◽  
Frequency Oscillation ◽  
Low Frequency Oscillation ◽  
Oscillation Characteristics

scholarly journals Background Pressure Effects on the Performance of a 20 kW Magnetically Shielded Hall Thruster Operating in Various Configurations

Aerospace ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 69
Author(s):  
Antonio Piragino ◽  
Farbod Faraji ◽  
Maryam Reza ◽  
Eugenio Ferrato ◽  
Annalisa Piraino ◽  
...  
Keyword(s):  
Mass Flow ◽  
Discharge Current ◽  
Pressure Effects ◽  
Hall Thruster ◽  
Physical Processes ◽  
Linear Behavior ◽  
Mass Flow Rates ◽  
Anode Mass ◽  
Lower Background ◽  
Operating Regimes

The paper reports the characterization results of a 20 kW-class magnetically shielded Hall thruster in three different configurations and operating with a centrally mounted cathode. The characterization was carried out at two different pumping speeds in SITAEL’s IV10 vacuum chamber, resulting in two different background pressure levels for each tested operating point. A linear behavior of discharge current and thrust values versus the anode mass flow rate was noticed for both pumping speeds levels and for all the three configurations. In addition, the thrust and discharge current values were always found to be lower at lower background pressure levels. From the performance levels, a preliminary estimate of the ingested mass flow rates was performed, and the values were then compared to a recently developed background flow model. The results suggested that, for this thruster and in the tested operating regimes, the change in performance due to background pressure could be ascribed not only to the ingestion of external mass flow coming from the chamber but also to other physical processes caused by the flux of residual background neutrals.

scholarly journals Numerical and Experimental Investigation of Longitudinal Oscillations in Hall Thrusters

Aerospace ◽  
2021 ◽  
Vol 8 (6) ◽  
pp. 148
Author(s):  
Vittorio Giannetti ◽  
Manuel Martín Saravia ◽  
Luca Leporini ◽  
Simone Camarri ◽  
Tommaso Andreussi
Keyword(s):  
Discharge Current ◽  
Fluid Model ◽  
Low Frequency ◽  
Hall Thruster ◽  
Hall Thrusters ◽  
Current Signal ◽  
Plasma Parameters ◽  
Plasma Properties ◽  
Breathing Mode ◽  
Spatio Temporal

One of the main oscillatory modes found ubiquitously in Hall thrusters is the so-called breathing mode. This is recognized as a relatively low-frequency (10–30 kHz), longitudinal oscillation of the discharge current and plasma parameters. In this paper, we present a synergic experimental and numerical investigation of the breathing mode in a 5 kW-class Hall thruster. To this aim, we propose the use of an informed 1D fully-fluid model to provide augmented data with respect to available experimental measurements. The experimental data consists of two datasets, i.e., the discharge current signal and the local near-plume plasma properties measured at high-frequency with a fast-diving triple Langmuir probe. The model is calibrated on the discharge current signal and its accuracy is assessed by comparing predictions against the available measurements of the near-plume plasma properties. It is shown that the model can be calibrated using the discharge current signal, which is easy to measure, and that, once calibrated, it can predict with reasonable accuracy the spatio-temporal distributions of the plasma properties, which would be difficult to measure or estimate otherwise. Finally, we describe how the augmented data obtained through the combination of experiments and calibrated model can provide insight into the breathing mode oscillations and the evolution of plasma properties.

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