Abstract
The frictional effect of collisions of ionized with neutral atoms on the Rayleigh—Taylor instability of a composite mixture through porous medium is considered in the presence of a horizontal magnetic field. For the case of two uniform fluids separated by a horizontal boundary, the magnetic field completely stabilizes certain wave-number band. For the case of exponentially varying density, the collisions are found to have no effect as such on the stratification. However for the stable stratification, the growth rates increase with the increase in permeability of the medium whereas for the unstable stratification, the growth rates may be both increasing or decreasing.
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Sharma, R.C., Thakur, K.P. Rayleigh-Taylor instability of a composite mixture through porous medium. Acta Physica 46, 247–252 (1979). https://doi.org/10.1007/BF03157944
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DOI: https://doi.org/10.1007/BF03157944