Current-driven plasma acceleration versus current-driven energy dissipation: Part III: Anomalous transport

Edgar Y. Choueiri, Arnold J. Kelly, Robert G. Jahn

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

In the first two papers of this series, the linear kinetic theory of instabilities in a magnetoactive, collisional, finite-beta, current-carrying and flowing plasma was developed, specialized for the parameters of the MPD thruster and compared to experimental measurements. In the present paper we use the linear stability description of the previous two papers along with weak turbulence theory to develop a second order description of wave-particle transport and anomalous dissipation. The goal is to arrive at anomalous transport coefficients that can be readily included in fluid flow codes. In particular, we derive expressions for the heating rates of ions and electrons by the unstable waves and for the electron-wave momentum exchange rate that controls the anomalous resistivity effect. Comparative calculations were undertaken assuming four different saturation models: ion trapping, electron trapping, ion resonance broadening and thermodynamic bound. A foremost finding is the importance of the role of electron Hall parameter in scaling the level of anomalous dissipation for the parameter range of the MPD thruster plasma. Polynomial expressions of the relevant transport coefficients cast solely in terms of macroscopic parameters are also obtained for inclusion in plasma fluid codes for the self-consistent numerical simulation of real thruster flows including microturbulent effects.

Original languageEnglish (US)
StatePublished - Jan 1 1992
EventAIAA/ASME/SAE/ASEE 28th Joint Propulsion Conference and Exhibit, 1992 - Nashville, United States
Duration: Jul 6 1992Jul 8 1992

Other

OtherAIAA/ASME/SAE/ASEE 28th Joint Propulsion Conference and Exhibit, 1992
CountryUnited States
CityNashville
Period7/6/927/8/92

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Aerospace Engineering
  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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