Gravity modes of inviscid plane Couette flow in a stratified fluid

Details Gravity modes of inviscid plane Couette flow in a stratified fluid Gravity modes of inviscid plane Couette flow in a stratified fluid

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...141..389v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 141, no. 2, Dec. 1984, p. 389-393. Sponsorship: Fonds de la Recherche Fondamen

Astronomy and Astrophysics

Astrophysics

1

Couette Flow, Inviscid Flow, Rotary Stability, Stellar Rotation, Stratified Flow, Flow Equations, Flow Velocity, Froude Number, Gravitational Fields, Hydrodynamics, Modal Response, Oscillating Flow

Scientific paper

Eigenfrequencies of Couette flows or linear velocity fields in stratified fluids are numerically determined for various values of the Froude number. The behavior of the eigenfrequencies as a function of the Froude number makes it possible to investigate the influence of a velocity field on the stability and the normal modes of a static configuration. All modes of Couette flows can be identified as g(+)- or g(-)-modes of a static fluid modified by the velocity field. As the velocity gradient of Couette flows with a fixed density stratification increases, the g-modes merge into local disturbances associated with the continuous spectrum.

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