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PIV measurement of the flow field in rectangular ducts with 60 circle parallel, crossed and V-shaped ribs

Gao, Xiufang LU and Sundén, Bengt LU (2004) In Experimental Thermal and Fluid Science 28(6). p.639-653
Abstract
The flow characteristics in rectangular ducts with aspect ratio of 1:8 were investigated experimentally using particle image velocimetry to reveal the function of the inclined ribs as turbulators or generators of favorable flows. Circular ribs were attached on the wide walls and the rib height-to-hydraulic diameter ratio was kept as 0.06 with an attack angle of 60degrees. The obtained results showed strong effects of the inclined ribs on the flow behavior by the development of secondary flows. The magnitude of the streamwise velocity component was detected to have spanwise variation. The flow characteristics were correlated with the previous corresponding heat transfer results obtained by the same authors. (C) 2003 Elsevier Inc. All rights... (More)
The flow characteristics in rectangular ducts with aspect ratio of 1:8 were investigated experimentally using particle image velocimetry to reveal the function of the inclined ribs as turbulators or generators of favorable flows. Circular ribs were attached on the wide walls and the rib height-to-hydraulic diameter ratio was kept as 0.06 with an attack angle of 60degrees. The obtained results showed strong effects of the inclined ribs on the flow behavior by the development of secondary flows. The magnitude of the streamwise velocity component was detected to have spanwise variation. The flow characteristics were correlated with the previous corresponding heat transfer results obtained by the same authors. (C) 2003 Elsevier Inc. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
secondary flow, enhancement, heat transfer, rib-roughened duct, particle image velocimetry
in
Experimental Thermal and Fluid Science
volume
28
issue
6
pages
639 - 653
publisher
Elsevier
external identifiers
  • wos:000221694800016
  • scopus:2442554040
ISSN
1879-2286
DOI
10.1016/j.expthermflusci.2003.10.005
language
English
LU publication?
yes
id
dadb26a7-9780-44f4-8476-ed52ea2534d3 (old id 277034)
date added to LUP
2007-10-26 12:58:57
date last changed
2017-12-10 03:47:36
@article{dadb26a7-9780-44f4-8476-ed52ea2534d3,
  abstract     = {The flow characteristics in rectangular ducts with aspect ratio of 1:8 were investigated experimentally using particle image velocimetry to reveal the function of the inclined ribs as turbulators or generators of favorable flows. Circular ribs were attached on the wide walls and the rib height-to-hydraulic diameter ratio was kept as 0.06 with an attack angle of 60degrees. The obtained results showed strong effects of the inclined ribs on the flow behavior by the development of secondary flows. The magnitude of the streamwise velocity component was detected to have spanwise variation. The flow characteristics were correlated with the previous corresponding heat transfer results obtained by the same authors. (C) 2003 Elsevier Inc. All rights reserved.},
  author       = {Gao, Xiufang and Sundén, Bengt},
  issn         = {1879-2286},
  keyword      = {secondary flow,enhancement,heat transfer,rib-roughened duct,particle image velocimetry},
  language     = {eng},
  number       = {6},
  pages        = {639--653},
  publisher    = {Elsevier},
  series       = {Experimental Thermal and Fluid Science},
  title        = {PIV measurement of the flow field in rectangular ducts with 60 circle parallel, crossed and V-shaped ribs},
  url          = {http://dx.doi.org/10.1016/j.expthermflusci.2003.10.005},
  volume       = {28},
  year         = {2004},
}