2011
DOI: 10.2514/1.48027
|View full text |Cite
|
Sign up to set email alerts
|

Background Pressure Effects on Ion Velocity Distribution Within a Medium-Power Hall Thruster

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

3
75
0

Year Published

2014
2014
2022
2022

Publication Types

Select...
6
1

Relationship

0
7

Authors

Journals

citations
Cited by 59 publications
(78 citation statements)
references
References 14 publications
3
75
0
Order By: Relevance
“…Both modes are believed to be tied to ionization processes in the Hall thruster because their frequencies are in the kilohertz to tens of kilohertz range, which is most closely related to the characteristic ion and neutral transit time across the discharge axial length scale. 6,12 Recently, there is a new surge of interest in these plasma oscillations because they have been observed to vary greatly with facility conditions 18 and may drive differences between thruster behavior in ground tests and on orbit. As more Hall thrusters are being considered for flight applications, including the HiVHAc series, it has become critical for the Hall thruster community to better understand the behavior of these plasma oscillations so that on-orbit performance can be predicted using ground test data.…”
Section: Past Workmentioning
confidence: 99%
See 2 more Smart Citations
“…Both modes are believed to be tied to ionization processes in the Hall thruster because their frequencies are in the kilohertz to tens of kilohertz range, which is most closely related to the characteristic ion and neutral transit time across the discharge axial length scale. 6,12 Recently, there is a new surge of interest in these plasma oscillations because they have been observed to vary greatly with facility conditions 18 and may drive differences between thruster behavior in ground tests and on orbit. As more Hall thrusters are being considered for flight applications, including the HiVHAc series, it has become critical for the Hall thruster community to better understand the behavior of these plasma oscillations so that on-orbit performance can be predicted using ground test data.…”
Section: Past Workmentioning
confidence: 99%
“…For a typical Hall thruster, the acceleration/ionization zone length is a few tens of millimeters. 18,27,28 Assuming a few millimeters change in the acceleration/ionization zone length correspond to a few millimeters change in the erosion band length and assuming the design margin on the erosion band length was chosen to be a few millimeters, one can establish 0.9 as the limit for how much change in normalized length scale is considered acceptable. Using Fig.…”
Section: A Correlating Breathing Mode Frequency To Wear Mechanics Anmentioning
confidence: 99%
See 1 more Smart Citation
“…The gradients around the exit are fairly large, and the two nozzle exit lips are singularity points where the density drops rapidly to the background density outside the nozzle. Figures 8-11 present several jet centerline properties, calculated with Equations (7), (8), (10) and (11). The parameters are: n b /n 0 = 0.2, S 0 = 2, S b = 1, T 0 = 200 Kelvin, and T b = 300 Kelvin, and the background flow direction α 0 varies to demonstrate the background flow effects on the primary jet flows.…”
Section: Validations and Discussion On The Derived Formulasmentioning
confidence: 99%
“…The work includes two parts: (1) quantify the background flow or facility effects on a weak jet; and (2) more importantly, recover the related parameters from limited measurements, and with these recovered parameters, the whole flowfield can be recovered, by applying Equations (7)- (11).…”
Section: Discussionmentioning
confidence: 99%