Full Content is available to subscribers

Subscribe/Learn More  >

Vane Endwall Heat Transfer for Smooth and Stepped Inlet Using Streamwise and Cross Stream Film Injection

[+] Author Affiliations
Pey-Shey Wu, Shun-Fu Chang

Da-Yeh University, Chang-Hua, Taiwan, R. O. C.

Paper No. GT2007-27850, pp. 661-670; 10 pages
  • ASME Turbo Expo 2007: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2007, Parts A and B
  • Montreal, Canada, May 14–17, 2007
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4793-4 | eISBN: 0-7918-3796-3
  • Copyright © 2007 by ASME


Cross film injection is employed in this study to generate a shear-induced secondary flow having the same sense of rotation as that of the passage vortex. Local heat transfer coefficient and film cooling effectiveness on the endwall surface are measured using liquid crystal techniques. The Reynolds number of the main flow based on the vane inlet velocity was fixed at ReC = 1.24×105 . The blowing ratio was 0.5, 1.0, or 2.0. The investigated endwall conditions before the vane entrance include a smooth endwall, an endwall with a forward-facing step, and an endwall with a backward-facing step. Cooling performance of the cross injection scheme is compared to that of streamwise, parallel injection, under the same coolant flow rate, endwall entrance condition, and the blowing ratio. The heat transfer results show that both cooling scheme have similar magnitude of overall heat transfer coefficient. In the film cooling results, cross injection shows a better attachment along the endwall. Also, the protected region is shifted towards the suction wall which may also help the cooling of the suction wall near the trailing edge. The cross injection is more advantageous than the streamwise parallel injection, regardless of the blowing ratio and the endwall conditions.

Copyright © 2007 by ASME
Topics: Heat transfer



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In