Advanced

An Experimental Study of Heat Transfer on an Outlet Guide Vane

Wang, Chenglong LU ; Wang, Lei LU ; Sundén, Bengt LU ; Chernoray, Valery and Abrahamsson, Hans (2014) ASME Turbo Expo: Turbine Technical Conference and Exposition In Proceedings of the ASME Turbo Expo: Turbine Technical Conference And Exposition, 2014, Vol 5B p.001-14
Abstract
In the present study, the heat transfer characteristics on the suction and pressure sides of an outlet guide vane (OGV) are investigated by using liquid crystal thermography (LCT) method in a linear cascade. Because the OGV has a complex curved surface, it is necessary to calibrate the LCT by taking into account the effect of viewing angles of the camera. Based on the calibration results, heat transfer measurements of the OGV were conducted. Both on- and off-design conditions were tested, where the incidence angles of the OGV were 25 degrees and -25 degrees, respectively. The Reynolds numbers, based on the axial flow velocity and the chord length, were 300,000 and 450,000. In addition, heat transfer on suction side of the OGV with +40... (More)
In the present study, the heat transfer characteristics on the suction and pressure sides of an outlet guide vane (OGV) are investigated by using liquid crystal thermography (LCT) method in a linear cascade. Because the OGV has a complex curved surface, it is necessary to calibrate the LCT by taking into account the effect of viewing angles of the camera. Based on the calibration results, heat transfer measurements of the OGV were conducted. Both on- and off-design conditions were tested, where the incidence angles of the OGV were 25 degrees and -25 degrees, respectively. The Reynolds numbers, based on the axial flow velocity and the chord length, were 300,000 and 450,000. In addition, heat transfer on suction side of the OGV with +40 degrees incidence angle was measured. The results indicate that the Reynolds number and incidence angle have considerable influences upon the heat transfer on both pressure and suction surfaces. For on-design conditions, laminar-turbulent boundary layer transitions are on both sides, but no flow separation occurs; on the contrary, for off-design conditions, the position of laminar-turbulent boundary layer transition is significantly displaced downstream on the suction surface, and a separation occurs from the leading edge on the pressure surface. As expected, larger Reynolds number gives higher heat transfer coefficients on both sides of the OGV. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceedings of the ASME Turbo Expo: Turbine Technical Conference And Exposition, 2014, Vol 5B
pages
001 - 14
publisher
Amer Soc. Mechanical Engineers
conference name
ASME Turbo Expo: Turbine Technical Conference and Exposition
external identifiers
  • WOS:000362139100059
  • Scopus:84922370022
DOI
10.1115/GT2014-25100
language
English
LU publication?
yes
id
0defb344-7b51-4c94-b8f5-814c8f0db462 (old id 8227443)
date added to LUP
2015-11-27 12:37:55
date last changed
2016-10-13 04:48:58
@misc{0defb344-7b51-4c94-b8f5-814c8f0db462,
  abstract     = {In the present study, the heat transfer characteristics on the suction and pressure sides of an outlet guide vane (OGV) are investigated by using liquid crystal thermography (LCT) method in a linear cascade. Because the OGV has a complex curved surface, it is necessary to calibrate the LCT by taking into account the effect of viewing angles of the camera. Based on the calibration results, heat transfer measurements of the OGV were conducted. Both on- and off-design conditions were tested, where the incidence angles of the OGV were 25 degrees and -25 degrees, respectively. The Reynolds numbers, based on the axial flow velocity and the chord length, were 300,000 and 450,000. In addition, heat transfer on suction side of the OGV with +40 degrees incidence angle was measured. The results indicate that the Reynolds number and incidence angle have considerable influences upon the heat transfer on both pressure and suction surfaces. For on-design conditions, laminar-turbulent boundary layer transitions are on both sides, but no flow separation occurs; on the contrary, for off-design conditions, the position of laminar-turbulent boundary layer transition is significantly displaced downstream on the suction surface, and a separation occurs from the leading edge on the pressure surface. As expected, larger Reynolds number gives higher heat transfer coefficients on both sides of the OGV.},
  author       = {Wang, Chenglong and Wang, Lei and Sundén, Bengt and Chernoray, Valery and Abrahamsson, Hans},
  language     = {eng},
  pages        = {001--14},
  publisher    = {ARRAY(0xba16ac0)},
  series       = {Proceedings of the ASME Turbo Expo: Turbine Technical Conference And Exposition, 2014, Vol 5B},
  title        = {An Experimental Study of Heat Transfer on an Outlet Guide Vane},
  url          = {http://dx.doi.org/10.1115/GT2014-25100},
  year         = {2014},
}