Please use this identifier to cite or link to this item:
https://hdl.handle.net/11147/9736
Title: | Mean and Fluctuating Velocity Characteristics of a Separated Shear Layer Past a Surface Mounted Block | Authors: | Özkol, Ünver Wark, C. Fabris, D. |
Publisher: | The American Society of Mechanical Engineers(ASME) | Abstract: | The mean velocity, Reynolds stress, and mean vorticity regions of a separated shear layer over a surface mounted block are investigated by 2D Digital Particle Image Velocimetry (DPIV) for three Reynolds numbers (Re-a= 500, 1000, and 2500) and two channel-to-block height ratios (H/a = 1.825 and 4.6). The recirculation region's height and length are determined for the separated shear layer by means of (U) over bar =0 contours. It is observed that the high Reynolds stress regions lay just outside of the (U) over bar =0 contours. The flow visualization and DPIV measurement of vorticity indicate that the differing normalized Reynolds stresses between Re-a=500 and 1000 are most probably due to the initiation of the vortex shedding between these two Reynolds numbers while, differences are minimal between Re-a= 1000 and 2500. A sign change in the Reynolds shear stress distribution of the separated shear layer near the leading edge of the block was recognized for every Reynolds number and channel width. | URI: | https://doi.org/10.1115/1.2409359 https://hdl.handle.net/11147/9736 |
ISSN: | 0098-2202 1528-901X |
Appears in Collections: | WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
Show full item record
CORE Recommender
SCOPUSTM
Citations
2
checked on Dec 13, 2024
WEB OF SCIENCETM
Citations
2
checked on Nov 9, 2024
Page view(s)
238
checked on Dec 9, 2024
Google ScholarTM
Check
Altmetric
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.