Rayleigh-Taylor instability in the presence of a stratified shear layer

Details Rayleigh-Taylor instability in the presence of a stratified shear layer Rayleigh-Taylor instability in the presence of a stratified shear layer

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.2945s&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, May 1, 1984, p. 2945-2954. Research supported by the U.S. Defence Nuc

Physics

35

Atmospheric Stratification, Magnetohydrodynamic Stability, Plasma Layers, Shear Layers, Spread F, Taylor Instability, Barium Ion Clouds, Collisional Plasmas, Collisionless Plasmas, Kelvin-Helmholtz Instability, Planetary Waves, Plasma Bubbles, Plasma Dynamics, Rayleigh Waves, Stratified Flow, Traveling Ionospheric Disturbances

Scientific paper

A nonlocal theory of the Rayleigh-Taylor instability, which includes the effect of a transverse velocity shear, is presented. A two-fluid model is used to describe an inhomogeneous plasma under the influence of gravity and sheared equilibrium flow velocity and to derive a differential equation describing the generalized Rayleigh-Taylor instability. An extensive parametric study is made in the collisionless and collisional regimes, and the corresponding dispersion curves are presented. The results are applied to the equatorial F region and to barium releases in the ionosphere.

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