TY - GEN
T1 - Rayleigh instability in hall thrusters
AU - Litvak, Andrei A.
AU - Fisch, Nathaniel J.
PY - 2002
Y1 - 2002
N2 - Gradient-driven Rayleigh-type instabilities in Hall plasma thrusters are analyzed using linearized two-fluid hydrodynamic equations. Necessary instability conditions and a general criterion for stability of azimuthally-propagating perturbations are derived. For a simplified ivodel of the axial distribution of parameters inside the thruster channel, the growth rate of an unstable wave, resonant, with the azimuthal electron flow, is obtained. The frequency and phase relations are related to the results of recent experimental investigations of highfrequency oscillations in Hall thrusters.
AB - Gradient-driven Rayleigh-type instabilities in Hall plasma thrusters are analyzed using linearized two-fluid hydrodynamic equations. Necessary instability conditions and a general criterion for stability of azimuthally-propagating perturbations are derived. For a simplified ivodel of the axial distribution of parameters inside the thruster channel, the growth rate of an unstable wave, resonant, with the azimuthal electron flow, is obtained. The frequency and phase relations are related to the results of recent experimental investigations of highfrequency oscillations in Hall thrusters.
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M3 - Conference contribution
AN - SCOPUS:84896881653
SN - 9781624101151
T3 - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
BT - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
T2 - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002
Y2 - 7 July 2002 through 10 July 2002
ER -