A GENERALIZED GRAPHICAL PRESENTATION OF MAGNETOHYDRODYNAMIC ACCELERATOR AND GENERATOR PERFORMANCE CHARACTERISTICS
ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN
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This report presents a graphical display of the generalized Ohms law which is assumed to describe the local electrical characteristics of magnetohydrodynamic accelerators and generators. Sheath voltage drops and ion slip are included, but viscous effects are excluded. A performance map is presented in terms of dimensionless electrical quantities. The features of the continuous electrode, segmented Faraday, segmented diagonal conducting wall, and segmented Hall accelerators and generators are represented on the same performance map for purposes of comparison. The operating equations pertinent to each of the special devices are also derived and expressed in terms of the dimensionless quantities. It is shown how this map may be used in evaluating MHD channel performance and how it materially aids in channel design and in selecting the most desirable kind of device for a given set of specifications.
- Electric Power Production and Distribution
- Plasma Physics and Magnetohydrodynamics