Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.149..301v&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 149, no. 2, Nov. 1988, p. 301-312.
Astronomy and Astrophysics
Astrophysics
1
Magnetohydrodynamic Stability, Porosity, Rotating Fluids, Taylor Instability, Interfacial Tension, Inviscid Flow, Magnetic Fields, Perturbation Theory
Scientific paper
The Rayleigh-Taylor instability of the plane interface separating the two partially-ionized superposed fluids through porous medium is analysed. The effect of variable horizontal magnetic field, surface tension and rotation along the vertical axis are also incorporated. It is found that the surface tension and horizontal magnetic field have a stabilizing effect on the R-T instability. The condition of instability remains unaffected by the permeability of porous medium, presence of neutral particles in the fluids and rotation. It is concluded that the system is unstable only for those positive wave numbers which are less than certain critical value in case of an adverse density gradient.
Chhajlani R. K.
Vaghela D. S.
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