Current sheet permeability in electromagnetic pulsed plasma thrusters

J. W. Berkery, E. Y. Choueiri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A case is made for the existence of permeability of current sheets in electromagnetic pulsed plasma thrusters. Permeability refers to the leakage of plasma or neutral particles behind the sheet and could cause a significant effect on the performance of the thruster. Analytical calculations are presented which demonstrate the mismatch between experimental velocity profiles and theoretical snowplow performances. Electron density measurements show a significant plasma wake following the sheet. Arguments are also presented based on these data, that in some cases the accelerating plasma sheet entrains less than one third of the propellant. An index of permeability is defined as a ratio of sheet-trailing mass to encountered propellant mass. It may be quantified either by directly measuring the trailing mass, or by measuring the mass entrained by the sheet. The diagnostics needed to measure this index are discussed.

Original languageEnglish (US)
Title of host publication38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101151
DOIs
StatePublished - 2002
Event38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002 - Indianapolis, IN, United States
Duration: Jul 7 2002Jul 10 2002

Publication series

Name38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

Other

Other38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002
CountryUnited States
CityIndianapolis, IN
Period7/7/027/10/02

All Science Journal Classification (ASJC) codes

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

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    Berkery, J. W., & Choueiri, E. Y. (2002). Current sheet permeability in electromagnetic pulsed plasma thrusters. In 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit (38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2002-4120