Influence of magnetic Reynolds number on power generated by an ideal MHD device
Abstract
The present note is concerned with the derivation of a simple expression for the power of an ideal, onedimensional MHD generator which is not restricted by the usual assumption of a very small magnetic Reynolds number. The expression applies to pulsed MHD generators and possibly other devices. It is found that, as the magnetic Reynolds number increases, the power to the load approaches an asymptotic limit. The derivation of the considered equation by means of different approaches is considered, taking into account the magnetic pressure acting on the plasma in a region of the magnetic field B0 and the energy contained in a magnetic field per unit volume.
 Publication:

AIAA Journal
 Pub Date:
 November 1985
 DOI:
 10.2514/3.9171
 Bibcode:
 1985AIAAJ..23.1813D
 Keywords:

 Magnetic Properties;
 Magnetohydrodynamic Generators;
 Power Conditioning;
 Reynolds Number;
 Anodes;
 Cathodes;
 Channel Flow;
 Electric Fields;
 Magnetohydrodynamic Flow;
 Plasma Physics