A Comparative Study on High Reynolds Number Turbulent Boundary Layers

Hafez, S. (2007). A Comparative Study on High Reynolds Number Turbulent Boundary Layers. In: Peter Jacobs, Tim McIntyre, Matthew Cleary, David Buttsworth, David Mee, Rose Clements, Richard Morgan and Charles Lemckert, 16th Australasian Fluid Mechanics Conference (AFMC). 16th Australasian Fluid Mechanics Conference (AFMC), Gold Coast, Queensland, Australia, (995-998). 3-7 December, 2007.

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Author Hafez, S.
Title of paper A Comparative Study on High Reynolds Number Turbulent Boundary Layers
Conference name 16th Australasian Fluid Mechanics Conference (AFMC)
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 995
End page 998
Total pages 4
Collection year 2007
Language eng
Abstract/Summary An increasing number of high quality measurements of turbulent boundary layers at high Reynolds number have been reported in the literature. These measurements come from flows that were established and developed employing different approaches and facilities. It is interesting to assess how the choice of an experimental set-up and the employment of different types of tripping device influence the state of development for such layers. The present study aims to establish, qualitatively, a relationship between mean flow parameters and higher order statistics of the flow, namely, the streamwise turbulence intensity. Detailed mean flow parameters and turbulence intensity profiles for normally tripped layers, in the sense of Coles [4], do not show dependence on the type of tripping device at high Reynolds number. However, there is some evidence indicating that naturally transition flows and artificially tripped layers that are highly perturbed during initial stages of development will not follow similar behaviour. It appears that flows with high Coles' profile parameter, П, will exhibit high levels of turbulence intensity in the outer flow region
Subjects 290000 Engineering and Technology
Keyword turbulent boundary layers
streamwise turbulence intensity
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, 14:48:29 EST by Bikash Das on behalf of School of Engineering