Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.204...87a&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 204, no. 1, p. 87-96.
Astronomy and Astrophysics
Astrophysics
2
Free Convection, Hall Effect, Magnetohydrodynamics, Plasma Waves, Convective Heat Transfer, Grashof Number, Mathematical Models, Partial Differential Equations, Perturbation Theory, Prandtl Number, Wave Propagation
Scientific paper
Analytical MHD studies are carried out on the propagation of oscillatory waves in a semiinfinite plasma which is exposed to an applied magnetic field. The oscillatory wave is introduced in the plasma environment by temperature perturbation. The phase speeds of the resultant disturbance are discussed in terms of Grashof, Prandtl, and Eckert numbers (free-convection parameters), Hall parameter, Alfven parameter, and frequencies. Expansion around a small Eckert number is performed to solve the very nonlinear coupled partial differential equations for the field variables.
Alagoa K. D.
Bestman A. R.
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A T M Abbey
The article is of high standard and is a publication arising from his PhD work
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