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Endwall heat transfer and aerodynamic performance of bowed outlet guide vanes (OGVs) with on- and off-design conditions

Lei, Luo LU ; Wang, Chenglong LU ; Wang, Lei LU ; Sundén, Bengt LU and Wang, Songtao (2016) In Numerical Heat Transfer Part A: Applications 69(4). p.352-368
Abstract
In this study, numerical simulations are conducted to investigate the effects of bowed outlet guide vanes (OGVs) on endwall heat transfer and aerodynamic performance. Both on- and off-design conditions are studied. For bowed vanes, the bowed angle varies from 10 degrees to 40 degrees and the normalized bowed height ranges from 0.1 to 0.3. Results are included for Nusselt number distributions on the endwall, the energy losses, the yaw angles, and near-wall flow structures. For the convenience of comparison, the straight vane is also studied as a baseline. It is found that the bowed vanes can effectively reduce the endwall heat transfer. Among the tested parameters, a bowed angle of 40 degrees and a normalized bowed height of 0.3 provide the... (More)
In this study, numerical simulations are conducted to investigate the effects of bowed outlet guide vanes (OGVs) on endwall heat transfer and aerodynamic performance. Both on- and off-design conditions are studied. For bowed vanes, the bowed angle varies from 10 degrees to 40 degrees and the normalized bowed height ranges from 0.1 to 0.3. Results are included for Nusselt number distributions on the endwall, the energy losses, the yaw angles, and near-wall flow structures. For the convenience of comparison, the straight vane is also studied as a baseline. It is found that the bowed vanes can effectively reduce the endwall heat transfer. Among the tested parameters, a bowed angle of 40 degrees and a normalized bowed height of 0.3 provide the best-controlled heat transfer for both the on- and off-design conditions. However, the bowed vanes have different effects on the energy losses and the yaw angles depending on the operating conditions. For the on-design condition with the inlet angle of 30 degrees (the incidence angle is 0 degrees) and the off-design condition with the inlet angle of 0 degrees, the bowed vanes do not significantly increase the energy losses and yaw angles, whereas for the off-design condition with the inlet angle of -30 degrees, significant changes are observed. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Numerical Heat Transfer Part A: Applications
volume
69
issue
4
pages
352 - 368
publisher
Taylor & Francis
external identifiers
  • wos:000367552100002
  • scopus:84953345308
ISSN
1040-7782
DOI
10.1080/10407782.2015.1081021
language
English
LU publication?
yes
id
a32dfa0f-78c5-4a5b-9fdc-7f5f32ded09e (old id 8761630)
date added to LUP
2016-02-22 13:21:24
date last changed
2017-09-24 04:03:06
@article{a32dfa0f-78c5-4a5b-9fdc-7f5f32ded09e,
  abstract     = {In this study, numerical simulations are conducted to investigate the effects of bowed outlet guide vanes (OGVs) on endwall heat transfer and aerodynamic performance. Both on- and off-design conditions are studied. For bowed vanes, the bowed angle varies from 10 degrees to 40 degrees and the normalized bowed height ranges from 0.1 to 0.3. Results are included for Nusselt number distributions on the endwall, the energy losses, the yaw angles, and near-wall flow structures. For the convenience of comparison, the straight vane is also studied as a baseline. It is found that the bowed vanes can effectively reduce the endwall heat transfer. Among the tested parameters, a bowed angle of 40 degrees and a normalized bowed height of 0.3 provide the best-controlled heat transfer for both the on- and off-design conditions. However, the bowed vanes have different effects on the energy losses and the yaw angles depending on the operating conditions. For the on-design condition with the inlet angle of 30 degrees (the incidence angle is 0 degrees) and the off-design condition with the inlet angle of 0 degrees, the bowed vanes do not significantly increase the energy losses and yaw angles, whereas for the off-design condition with the inlet angle of -30 degrees, significant changes are observed.},
  author       = {Lei, Luo and Wang, Chenglong and Wang, Lei and Sundén, Bengt and Wang, Songtao},
  issn         = {1040-7782},
  language     = {eng},
  number       = {4},
  pages        = {352--368},
  publisher    = {Taylor & Francis},
  series       = {Numerical Heat Transfer Part A: Applications},
  title        = {Endwall heat transfer and aerodynamic performance of bowed outlet guide vanes (OGVs) with on- and off-design conditions},
  url          = {http://dx.doi.org/10.1080/10407782.2015.1081021},
  volume       = {69},
  year         = {2016},
}