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Impulsively started oscillations in a rotating stratified fluid

Published online by Cambridge University Press:  29 March 2006

Myrl C. Hendershott
Myrl C. Hendershott
Affiliation:
Seripps Institution of Oceanography, University of California, San Diego
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Abstract

The motion generated in an initially quiescent, incompressible, stratified, and/or rotating fluid of infinite extent when a spherical source begins to breathe fluid in and out periodically is considered. The properties of the resulting flow may be understood in terms of the inertial-internal waves which may propagate energy in the fluid. At all points located a finite distance from the source, except those points falling on certain conical surfaces which are tangent to the source and which contain the group velocity vector for waves at the source frequency, the flow is ultimately a steady oscillation at the source frequency. The manner in which the flow depends on source frequency is discussed in detail.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 36 , Issue 3 , 1 May 1969 , pp. 513 - 527
Copyright
© 1969 Cambridge University Press

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