Kink instabilities in a magneto-plasma-dynamic thruster with and without external magnetic field

M. Zuin, V. Antoni, M. Bagatin, R. Cavazzana, E. Martines, G. Serianni, M. Andrenucci, F. Paganucci, P. Rossetti

Research output: Contribution to conferencePaper

Abstract

The properties of plasma fluctuations in a Magneto-Plasma-Dynamic (MPD) thruster and their role on the performance of this kind of devices has been object of an extensive experimental investigation. In particular, the analysis of electrostatic and magnetic fluctuations with and without the application of an external magnetic field has shown the electromagnetic nature of plasma fluctuations. Gross magnetohydrodynamic instabilities are found to develop whenever the current rises beyond a threshold value. These instabilities have features of helical kink modes with prevalent azimuthal m and axial n periodicity m/n = 1/1 and their occurrence can be described by the Kruskal-Shafranov criterion, generally used in screw pinch stability analysis. The growth of these modes is found to be the cause of the large loss of efficiency observed in MPD thrusters when operating at high current. © 2004 by the American Institute of Aeronautics and Astronautics, Inc.
Original languageEnglish
Publication statusPublished - 2004
Externally publishedYes
Event40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit - , United States
Duration: 1 Jan 2004 → …

Conference

Conference40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
CountryUnited States
Period1/1/04 → …

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All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Zuin, M., Antoni, V., Bagatin, M., Cavazzana, R., Martines, E., Serianni, G., ... Rossetti, P. (2004). Kink instabilities in a magneto-plasma-dynamic thruster with and without external magnetic field. Paper presented at 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, United States.