Quantitative visualization of the near-wall structures in a turbulent pipe flow by image correlation velocimetry

Quantitative visualization of the near-wall structures in a turbulent pipe flow by image... Laser-induced fluorescent dye visualization and image correlation velocimetry were employed to delineate near-wall turbulent structures in a pipe flow. The sweeping and ejection events near the wall and the downstream evolution of a large-scale eddy structure rotating in a counter-clockwise direction were clearly reflected in the instantaneous fluctuating velocity fields. This eddy structure was found to form mostly in the logarithmic region and to dominate the flow structures there, while the ejection and sweeping events in the log layer were greatly influenced by the existence of the large-scale eddy structure. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Quantitative visualization of the near-wall structures in a turbulent pipe flow by image correlation velocimetry

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Publisher
Springer-Verlag
Copyright
Copyright © 2002 by Springer-Verlag Berlin Heidelberg
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-001-0378-3
Publisher site
See Article on Publisher Site

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