Accession Number : AD0472727


Title :   A GENERALIZED GRAPHICAL PRESENTATION OF MAGNETOHYDRODYNAMIC ACCELERATOR AND GENERATOR PERFORMANCE CHARACTERISTICS


Descriptive Note : Technical rept.


Corporate Author : ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN


Personal Author(s) : Powers, W L ; Dicks, J B ; Snyder, W T


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/472727.pdf


Report Date : Oct 1965


Pagination or Media Count : 45


Abstract : This report presents a graphical display of the generalized Ohm's 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.


Descriptors :   *GAS IONIZATION , *MAGNETOHYDRODYNAMICS , ELECTRODES , GENERATORS , HALL EFFECT , MAGNETOOPTICS , MATHEMATICAL ANALYSIS , PERFORMANCE(ENGINEERING)


Subject Categories : Electric Power Production and Distribution
      Plasma Physics and Magnetohydrodynamics


Distribution Statement : APPROVED FOR PUBLIC RELEASE