Instability of partially-ionized superposed plasmas

Details Instability of partially-ionized superposed plasmas Instability of partially-ionized superposed plasmas

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.181..103g&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 181, no. 1, July 1991, p. 103-110.

Astronomy and Astrophysics

Astrophysics

2

Magnetic Field Configurations, Magnetohydrodynamic Stability, Plasma Density, Taylor Instability, Two Fluid Models, Electrical Resistivity, Gravitational Effects, Ionization, Viscosity

Scientific paper

The stability of the plane interface separating two viscous superposed partially-ionized plasmas of uniform densities has been studied. The whole system is assumed to be immersed in a uniform two-dimensional horizontal magnetic field and the stability analysis has been carried out through the normal mode technique. The dispersion relation has been derived for the case of two superposed plasmas of equal kinematic viscosities. The dispersion relation has been solved numerically for different values of the physical parameters involved. It is found that viscosity and collision frequency of ionized plasmas both have stabilizing influence on the growth rate of the unstable mode of disturbance.

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