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Two-layer flow past a cylinder in a rotating frame

Published online by Cambridge University Press:  25 September 1998

PETER BLANCHONETTE
PETER BLANCHONETTE
Affiliation:
Centre for Dynamical Meteorology and Oceanography, Monash University, Clayton, Victoria 3168, Australia Present address: Air Operations Division, AMRL, PO Box 4331, Melbourne Vic. 3001, Australia, email: Peter.Blanchonette@dsto.defence.gov.au.
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Abstract

In this paper the two-layer flow past a cylinder in a rotating frame is modelled numerically. This study follows on from the many theoretical and experimental examinations of the one-layer flow past a cylinder. The main aim of this study is to investigate the geophysically relevant effect on the flow of varying the vertical shear, while keeping the other parameters the same in both layers. This will include an examination of the contour plots of vorticity and streamfunction and measuring the size of the separated region and the position of separation as a function of the vertical shear. The most interesting result is that the separated region in the slower layer grows much larger than that in the faster layer as the vertical shear is increased.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 371 , 25 September 1998 , pp. 301 - 318
Copyright
© 1998 Cambridge University Press

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