UNSPECIFIED. (1996) Dynamical characterization of the spatiotemporal structures in the wake of a bluff body. JOURNAL OF FLUIDS AND STRUCTURES, 10 (1). 21-&. ISSN 0889-9746

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Abstract

Singular systems analysis (SSA) and cluster analysis are used to map out and characterize the three-dimensional spatiotemporal structures encountered in the wake of a finite-aspect-ratio circular cylinder. The evolution of the wake structure - determined using experimentally obtained velocity time series - was studied as it underwent transition in the range of Reynolds numbers 100 to 200. Using these techniques important new features in the wake structure are identified: for example, it is seen that the whole of the pre-transitional wake is simply ordered by the nonlinear mixing of modes generated in the near wake region, whilst, after transition, a localized region of turbulence exists. (C) 1996 Academic Press Limited

Item Type:	Journal Article
Subjects:	T Technology > TJ Mechanical engineering and machinery
Journal or Publication Title:	JOURNAL OF FLUIDS AND STRUCTURES
Publisher:	ACADEMIC PRESS LTD
ISSN:	0889-9746
Official Date:	January 1996
Dates:	Date Event January 1996 UNSPECIFIED
Volume:	10
Number:	1
Number of Pages:	20
Page Range:	21-&
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/18994

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