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The stability of the Strokes layer in periodic orbital flow around a circular cylinder

Published online by Cambridge University Press:  26 February 2010

B. Yan
Affiliation:
School of Mathematics, University of East Anglia, Norwich NR4 7TJ
N. Riley
Affiliation:
School of Mathematics, University of East Anglia, Norwich NR4 7TJ
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Summary

In this paper we carry out a linear stability analysis within the Stokes layer that, under suitable conditions, forms at the surface of a circular cylinder in periodic orbital motion. The analysis is related to that performed by Seminara [1,2] in the Stokes layer on a torsionally oscillating cylinder and by Hall [3] in the Stokes layer at the surface of a cylinder in purely oscillatory motion. In all cases we find that the minimum critical Taylor number is located where the flow at the edge of the Stokes layer has maximum speed in each period of the motion.

Type
Research Article
Copyright
Copyright © University College London 1997

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