Conductivity of an impure, nonequilibrium plasma with electrothermal instabilities
Impurities and electrothermal instabilities effect on conductivity of two temperature nonequilibrium plasma
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Impurities and electrothermal instabilities effect on conductivity of two temperature nonequilibrium plasma
Nonlinear equilibrium states of a microscopic current filamentation (electrothermal instability) in the solar atmosphere are explored. This phenomenon occurs for transition zone ion temperature plasmas provided that the electron to ion temperature ratio exceeds 1. It is shown that when the onset condition for the electrothermal instability is satisfied, the instability drives a current filamentation to a nonlinear equilibrium state that has a spatially periodic electron temperature variation with wavelength.
Electrothermal instabilities of ionization region of nonequilibrium MHD generator in presence of magnetic field
Electrothermal instabilities for explanation of MPD arc thrustor rotating spoke phenomenon, noting agreement with experimental results
Electrothermal instabilities effects on Brayton and Rankine cycle magnetohydrodynamic space power generation systems
Electron temperature instabilities in entrance region of magnetohydrodynamic generator
Nonequlibrium plasma stability, conductivity and Hall parameter influenced by current flow parallel to magnetic field, discussing Ar-Cs and He-Cs plasma data
MPD work at MIT is presented in the form of the view-graphs. The following subject areas are covered: the MIT program, its goals, achievements, and roadblocks; quasi one-dimensional modeling; two-dimensional modeling - transport effects and Hall effect; microscopic instabilities in MPD flows and modified two stream instability; electrothermal stability theory; separation of onset and anode depletion; exit plane spectroscopic measurements; phenomena of onset as performance limiter; explanations of onset; geometry effects on onset; onset at full ionization and its consequences; relationship to anode depletion; summary on self-field MPD; applied field MPD - the logical growth path; the case for AF; the challenges of AF MPD; and recommendations.
Electrothermally induced instability of plasma moving in infinite segmented electrode MHD channel perpendicular to magnetic field, analyzing current distribution evolution
Results are presented of numerical computer calculations of dispersive wave growth rates in slightly ionized plasmas. The effects of employing a plasma model with detailed consideration of rate and radiative processes involving the electron quantum states were studied. Acoustic and electrothermal waves in unseeded argon are found to be frozen with the latter damped. Rate thermal modes can exhibit large growth. Mode mixing and switching in both seeded and unseeded argon are demonstrated.