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Hall Currents and the Rayleigh-Taylor Instability of a Finitely Conducting Plasma in the Presence of Coriolis Forces

✍ Scribed by V. D. Sankhla; P. K. Bhatia

Publisher: John Wiley and Sons
Year: 1978
Tongue: English
Weight: 221 KB
Volume: 18
Category: Article
ISSN: 0005-8025
DOI: 10.1002/ctpp.19780180402

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✦ Synopsis

We have studied the effect of rotation on the development of Ragleigh-Taylor instability of an incompressible, viscous, Hall, finitely conducting plasma of variable density. The solution is developed, through variational methods, for n semi-infinite pliisma in which the density varies exponentially along the vertical. It is found that the system is unstable for all wave numbers when the effects of magnetic resistivity are included. The effects of coriolis forces and viscosity on the growth rate of the unstable system are found to be stabilizing while that of Hiill currents is destabilizing.

Finite conductivity affects the growth rate of the unstable mode differently for the smaller and larger values of the wave numbers, destabilizing for the waves of large wave length and stabilizing for waves of smell wave length.

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