Cylinder Wake – Boundary Layer Interaction in the Near Field

Dillon-Gibbons, C. J., Wong, C. Y., Chen, L. and Soria, J. (2007). Cylinder Wake – Boundary Layer Interaction in the Near Field. In: Peter Jacobs, Tim McIntyre, Matthew Cleary, David Buttsworth, David Mee, Rose Clements, Richard Morgan and Charles Lemckert, 16th Australasian Fluid Mechanics Conference (AFMC). , Gold Coast, Queensland, Australia, (1475-1480). 3-7 December, 2007.

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Author Dillon-Gibbons, C. J.
Wong, C. Y.
Chen, L.
Soria, J.
Title of paper Cylinder Wake – Boundary Layer Interaction in the Near Field
Conference location Gold Coast, Queensland, Australia
Conference dates 3-7 December, 2007
Proceedings title 16th Australasian Fluid Mechanics Conference (AFMC)
Place of Publication Brisbane, Australia
Publisher School of Engineering, The University of Queensland
Publication Year 2007
Year available 2007
Sub-type Fully published paper
ISBN 978-1-864998-94-8
Editor Peter Jacobs
Tim McIntyre
Matthew Cleary
David Buttsworth
David Mee
Rose Clements
Richard Morgan
Charles Lemckert
Start page 1475
End page 1480
Total pages 6
Collection year 2007
Language eng
Abstract/Summary The interaction between the wake generated from separation off a cylinder and turbulent structures evident in a boundary layer are of significant importance in understanding the flows for cooling towers, submerged and semi-submerged vessels. This investigation was conducted on a wall mounted circular cylinder 25.4mm in diameter in the near wake region using MCCDPIV (multi-grid cross correlation digital particle image velocimetry) using a PCO4000 CCD array with full resolution of 4008 x 2672 pixels2 per image. The investigation was conducted for (ReD ≡ DU / ν) of 3600 and 5400. It was seen in the mean after taking the ensemble average of the instantaneous results that a stagnation line was formed between x / D = 1 and 1.5 downstream of the cylinder. The region of the cavity wake was highly turbulent having the largest velocity fluctuations in this region. The shape of the stagnation line was also seen to change, where for the ReD = 3600 the stagnation line position from the cylinder changed for a given height above the flat plate surface at y / D = 0.
Subjects 290501 Mechanical Engineering
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Conference Paper
Collection: 16th Australasian Fluid Mechanics Conference
 
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Created: Thu, 20 Dec 2007, 09:17:45 EST by Laura McTaggart on behalf of School of Engineering