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Wave Transport in Stratified, Rotating Fluids

Published online by Cambridge University Press:  15 February 2018

M. E. McIntyre
M. E. McIntyre*
Affiliation:
Department of Applied Mathematics and Theoretical Physics, University of Cambridge

Summary

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Momentum and energy transport by buoyancy-Coriolis waves is illustrated by means of a simple model example. The need for careful consideration of a complete problem for mean-flow evolution is emphasised, especially when moving media are involved. Then a recent generalisation of the wave-action and pseudomomentum concepts is introduced, and used to exhibit in a very general way the roles of wave dissipation, forcing, or transience in the mean flow problem, for a certain class of ‘nearly-unidirectional’ mean flows. This class includes differentially-rotating stellar interiors, which could well be systematically changed by wave transport of angular momentum. Similar results hold for MHD and self-gravitating fluids. Finally the physical distinction between momentum and pseudomomentum is discussed.

Type
VIII. Waves
Information
International Astronomical Union Colloquium , Volume 38: Problems of Stellar Convection , 1977 , pp. 290 - 314
Copyright
Copyright © 1976

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