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Stability of rotating shear flows in shallow water

Published online by Cambridge University Press:  26 April 2006

Charles Knessl  and
Joseph B. Keller
Charles Knessl
Affiliation:
Department of Mathematics, Statistics, and Computer Science, University of Illinois at Chicago, Chicago, IL 60680, USA
Joseph B. Keller
Affiliation:
Departments of Mathematics and Mechanical Engineering, Stanford University, Stanford, CA 94305, USA
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Abstract

Asymptotic methods are used to determine the dispersion equation for disturbances of rotating parallel flows in shallow water. From this equation the unstable modes and their growth rates are determined. The solution involves seven asymptotic expansions which are matched together. The results supplement and extend those which have been obtained previously using numerical methods by Griffiths, Killworth & Stern (1982) and by Hayashi & Young (1987).

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 244 , November 1992 , pp. 605 - 614
Copyright
© 1992 Cambridge University Press

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References

Griffiths R. W., Killworth, P. D. & Stern M. E. 1982 A geostrophic instability of ocean currents. J. Fluid Mech. 117, 343–377.Google Scholar
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Satomura T. 1981b Supplementary note on shear instability in a shallow water. J. Met. Soc. Japan 59, 168–171.Google Scholar