Linear 1-D analysis of oscillation instabilities in stationary plasma thrusters
Name
43584220-MIT.pdf
Description
Full printable version
Size
5.46 MB
Format
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Checksum (MD5)
c83e529559f00a0233d96764283dd55c
Author(s)
Noguchi, Reid A. (Reid Andrew), 1975-
Advisor(s)
M. Martinez-Sanchez.
Alternative Title
Linear one-dimensional analysis of oscillation instabilities in stationary plasma thrusters
Date Issued
1999
Publisher
Massachusetts Institute of Technology
Abstract
A one-dimensional, linear perturbation model was formulated to aid in the analysis of the low-frequency (33 kHz), axial oscillation instabilities observed during the operation of Stationary Plasma Thrusters. The first six solutions of this l st order perturbation model were determined by scanning the complex frequency plane and were addressed in this study. Of these modes, two notable patterns of behavior were found and discussed. The first group of modes had waves which translated through the thruster, with a fundamental harmonic of 49.7 kHz. The second group, having a fundamental harmonic of 74.2 kHz, exhibited a sloshing type of behavior and was found to have several characteristics of a predator-prey type cycle. Although all modes were found to be highly damped, contrary to the existence of oscillation instabilities, it is believed that an ionization-acoustic resonance instability could be excited.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1999.
Includes bibliographical references (p. 129).
Subjects
Aeronautics and Astronautics
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
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