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Dynamical characterization of the spatiotemporal structures in the wake of a bluff body

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

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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:
DateEvent
January 1996UNSPECIFIED
Volume: 10
Number: 1
Number of Pages: 20
Page Range: 21-&
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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