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Unsteady high-Reynolds-number flows

Published online by Cambridge University Press:  26 April 2006

N. Riley  and
R. Vasantha
N. Riley
Affiliation:
School of Mathematics, University of East Anglia, Norwich NR4 7TJ, UK
R. Vasantha
Affiliation:
School of Mathematics, University of East Anglia, Norwich NR4 7TJ, UK
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Abstract

A method for calculating unsteady boundary-layer flows, based upon a vorticity–stream function formulation, has been supplemented by an appropriate viscous–inviscid interaction law to extend the calculations to large but finite Reynolds numbers. Two examples are considered in detail, namely the impulsive motion of a circular cylinder, and the flow induced when a line vortex is introduced into the neighbourhood of a circular cylinder. For the first of these a comparison of the results obtained with earlier boundary-layer and interactive calculations, Navier–Stokes solutions and experiment is made.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 205 , August 1989 , pp. 243 - 262
Copyright
© 1989 Cambridge University Press

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