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MPD arcjet cathode surface current density

Sheshadri, TS (1991) MPD arcjet cathode surface current density. In: Transactions of the Japan Society for Aeronautical and Space Sciences, 34 (104). 49 -55.

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Official URL: http://adsabs.harvard.edu/abs/1991JSAST..34...49S

Abstract

The radial current density distribution on the cathode longitudinal surface of magnetoplasmadynamic arcjets for axisymmetric geometries has been obtained by simultaneous solution of the electromagnetic equations for a given uniform gas dynamic field. The problem formulation permits a parametric study of the effects of the Hall parameter and the magnetic Reynolds number. The solution for the current density distribution displays current concentrations at two locations, that is, at the upstream and downstream ends of the cathode. This result is in conformity with known experimental data. The parameters responsible for these current concentrations are identified. It is shown that the effect of the magnetic Reynolds number on the current density distribution is different depending on whether or not the Hall effect is included. This result is also found to be consistent with experimental data.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Japan Society for Aeronautical and Space Sciences.
Keywords: Arc Jet Engines;Current Density;Magnetohydrodynamic Flow;Magnetoplasmadynamics;Radial Distribution;Cathodes;Gas Dynamics;Hall Effect;Plasma Density;Plasma Temperature;Reynolds Number;Space Charge.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 24 Nov 2010 08:56
Last Modified: 24 Nov 2010 08:56
URI: http://eprints.iisc.ernet.in/id/eprint/33996

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