Effect of impingement/effusion hole-area ratio on discharge coefficients of double cooling wall

Paper


Zhang, Chi, Xu, Quanhong, Zhao, Mengmeng, Lin, Yuzhen and Liu, Gaoen. 2006. "Effect of impingement/effusion hole-area ratio on discharge coefficients of double cooling wall." ASME Turbo Expo 2006. Barcelona, Spain 08 - 11 May 2006 United States. https://doi.org/10.1115/GT2006-90612
Paper/Presentation Title

Effect of impingement/effusion hole-area ratio on discharge coefficients of double cooling wall

Presentation TypePaper
AuthorsZhang, Chi (Author), Xu, Quanhong (Author), Zhao, Mengmeng (Author), Lin, Yuzhen (Author) and Liu, Gaoen (Author)
Journal or Proceedings TitleASME Turbo Expo 2006: Power for Land, Sea, and Air
Journal Citation3, pp. 569-579
Number of Pages11
Year2006
Place of PublicationUnited States
ISBN079184238X
0791837742
Digital Object Identifier (DOI)https://doi.org/10.1115/GT2006-90612
Web Address (URL) of Paperhttp://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1587039
Conference/EventASME Turbo Expo 2006
Event Details
ASME Turbo Expo 2006
Event Date
08 to end of 11 May 2006
Event Location
Barcelona, Spain
Abstract

This paper presents the experimental investigations on the discharge coefficients of impingement/effusion double flat wall with the impingement/effusion hole-area ratios of 1, 0.64 and 0.28. The impingement and effusion walls researched have equal numbers of holes per unit surface area in diamond arrays. The impingement holes are normal to the wall surface, the effusion holes are 30 degree to the wall surface in the sreamwise direction of the main flow, and both the impingement and effusion holes are arranged in the staggered mode. The CFD code was also applied to investigate the flow field within the impingement/effusion wall in detail. The experimental results indicated the relationship of the discharge coefficients of the single impingement wall, effusion wall and double wall with the overall pressure parameter of double wall in different impingement/effusion hole-area ratios, and were explained in the CFD results.

KeywordsCooling , Discharge coefficient
ANZSRC Field of Research 2020401201. Aerodynamics (excl. hypersonic aerodynamics)
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Byline AffiliationsBeihang University, China
Institution of OriginUniversity of Southern Queensland
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