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Linear 1-D analysis of oscillation instabilities in stationary plasma thrusters

Author(s)
Noguchi, Reid A. (Reid Andrew), 1975-
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Alternative title
Linear one-dimensional analysis of oscillation instabilities in stationary plasma thrusters
Advisor
M. Martinez-Sanchez.
Terms of use
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582
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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).
 
Date issued
1999
URI
http://hdl.handle.net/1721.1/9480
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Publisher
Massachusetts Institute of Technology
Keywords
Aeronautics and Astronautics

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