Published 12 issues per year
ISSN Print: 1091-028X
ISSN Online: 1934-0508
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INSTABILITY OF HYDROMAGNETIC FLUIDS STREAMING IN A POROUS MEDIUM WITH SUSPENDED DUST PARTICLES
ABSTRACT
The Rayleigh−Taylor (R-T) and Kelvin−Helmholtz (K-H) instabilities of a plasma are discussed in a porous medium with a horizontal magnetic field and suspended dust particles. The medium is assumed to be incompressible. The linearized hydromagnetic equations are solved, and a dispersion relation for such a medium has been obtained using appropriate boundary conditions. We find that the dispersion relation is modified owing to the simultaneous presence of a magnetic field, porosity, and suspended particles. The instability criterion for the medium is derived, which is found to be independent of the presence of the suspended dust particles. Similarly, conditions of R-T and K-H instability of the system are also derived for the present porous medium.
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Sharma P K, Tiwari A, Argal S, Chhajlani R K, Rayleigh Taylor instability of two superposed compressible fluids in un-magnetized plasma, Journal of Physics: Conference Series, 534, 2014. Crossref