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

Conference · Wed Jul 01 00:00:00 EDT 1992

OSTI ID:7001883

Choueiri, E Y; Kelly, A J; Jahn, R G ^[1]

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1. Princeton University, NJ (United States)

In the present paper the linear stability description and weak turbulence theory are used 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, expressions are derived 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. 29 refs.

• Research Organization: National Aeronautics and Space Administration, Houston, TX (United States). Lyndon B. Johnson Space Center
• OSTI ID: 7001883
• Report Number(s): AIAA-Paper-92-3739; CONF-920747-
• Resource Relation: Conference: 28. joint propulsion conference, Nashville, TN (United States), 6-8 Jul 1992; Other Information: Research supported by Rocket Research, Inc. and DOE
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
30 DIRECT ENERGY CONVERSION
THRUSTERS
MAGNETOHYDRODYNAMICS
COMPUTERIZED SIMULATION
ENERGY LOSSES
HALL EFFECT
HEATING
MOMENTUM TRANSFER
PLASMA ACCELERATION
PLASMA HEATING
ACCELERATION
FLUID MECHANICS
HYDRODYNAMICS
LOSSES
MECHANICS
SIMULATION
330000* - Advanced Propulsion Systems
300104 - MHD Generators- Duct Engineering & Fluid Dynamics