Analysis of scale energy budgets in wall turbulence using dual plane PIV

Saikrishnan, N., Longmire, E. K. and Marusic, I. (2007). Analysis of scale energy budgets in wall turbulence using dual plane PIV. 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, (744-749). 3-7 December, 2007.

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Author Saikrishnan, N.
Longmire, E. K.
Marusic, I.
Title of paper Analysis of scale energy budgets in wall turbulence using dual plane PIV
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 744
End page 749
Total pages 6
Collection year 2007
Language eng
Abstract/Summary The scale energy budget in the near wall region is a subject of great interest in turbulent flows since it combines concepts from independent analysis in physical space and scale space. Earlier, this energy budget was studied numerically using Direct Numerical Simulation (DNS) data and experimentally using low resolution dual plane Particle Image Velocimetry (PIV) data. It was observed that the low resolution PIV data were not sufficient to accurately capture the dynamics of the energy balance and hence high resolution experiments were conducted in similar experimental conditions. The results from these high resolution data conducted in two locations of the logarithmic layer of the boundary layer indicate that the resolution of these experiments is sufficient to capture the scale energy budget in the near wall region. Predictions of the cross-over scale, which is related to the relative importance of production and transfer of turbulent kinetic energy, are found to match expected trends, and illustrate that the experimental technique provides a powerful tool for the scale energy budget analysis.
Subjects 290000 Engineering and Technology
Keyword scale energy budget
near wall region
turbulent flows
Direct Numerical Simulation
DNS
Particle Image Velocimetry
PIV
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: Wed, 19 Dec 2007, 14:52:08 EST by Thelma Whitbourne on behalf of School of Engineering