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MHD arcjet onset boundary of high specific impulse Plasma Thrusters

Jaisankar, S and Sushma, TV and Sheshadri, TS (2012) MHD arcjet onset boundary of high specific impulse Plasma Thrusters. In: 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 09-12 January 2012, Nashville, Tennessee.

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Official URL: http://dx.doi.org/10.2514/6.2012-191


Magnetoplasmadynamic thrusters are known to enter a strongly unstable regime, calledas onset in the literature, under high specific impulse operation. This paper probes the early signs of onset in relatively moderate specific impulse operation by a single fluid plasma thruster simulation. The procedure involves solving the combined Maxwell’s-Navier-Stokes equation, with an onset criterion of radial current reaching close to zero values near the electrodes. Thruster parameters are varied starting from voltage potential, plasma temperature and cathodic radius. Onset curves are plotted which can provide important engine-specific information in order to understand the onset performance of the plasma thruster.

Item Type: Conference Paper
Publisher: American Institute of Aeronautics and Astronautics
Additional Information: Copyright of this article belongs to American Institute of Aeronautics and Astronautics.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 11 Mar 2014 05:12
Last Modified: 11 Mar 2014 05:12
URI: http://eprints.iisc.ac.in/id/eprint/48580

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