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Large-scale vortex structures in turbulent wakes behind bluff bodies. Part 2. Far-wake structures

Published online by Cambridge University Press:  21 April 2006

T. R. Steiner  and
A. E. Perry
T. R. Steiner
Affiliation:
Department of Mechanical Engineering, University of Melbourne. Parkville, 3052, Victoria, Australia
A. E. Perry
Affiliation:
Department of Mechanical Engineering, University of Melbourne. Parkville, 3052, Victoria, Australia
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Abstract

An investigation of a selection of high-Reynolds-number bluff-body flows was conducted. Here in Part 2 phase-averaged velocity-field results will be presented for several far-wake flows generated by nominally two-dimensional and three-dimensional bodies. In these far-wake flows the shed vortices have approached a nearly constant convection velocity. Some mean velocity and phase-averaged and global Reynoldsstress measurements are also presented. The turbulent wake of a lift-producing three-dimensional body has been examined. Also included are the phase-averaged wake patterns behind a flapping flag and a windmill. The topological structure of these patterns is discussed and a preliminary classification of wake patterns is presented.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 174 , January 1987 , pp. 271 - 298
Copyright
© 1987 Cambridge University Press

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