Effect of density discontinuity on Alfven internal gravity waves

Details Effect of density discontinuity on Alfven internal gravity waves Effect of density discontinuity on Alfven internal gravity waves

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.132..105s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 132, no. 1, April 1987, p. 105-111. UGCI-supported research.

Astronomy and Astrophysics

Astrophysics

Atmospheric Density, Gravity Waves, Internal Waves, Magnetohydrodynamic Stability, Magnetohydrodynamic Waves, Upper Atmosphere, Atmospheric Models, Boundary Value Problems, Boussinesq Approximation, Inviscid Flow, Magnetic Field Configurations

Scientific paper

The stability characteristics of Alfven internal gravity waves for an inviscid, nondissipative Boussinesq fluid undergoing shear in the presence of a density discontinuity are investigated, with and without the presence of a rigid boundary. The presence of linear shear is shown to have a destabilizing effect on the unstable modes, and a new unstable mode which is different from the ones previously reported is found. In the absence of a rigid boundary, magnetic field, and gradient in shear, the model reduces to that of Pellacani et al. (1978).

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