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 Type	Paper
Authors	Zhang, Chi (Author), Xu, Quanhong (Author), Zhao, Mengmeng (Author), Lin, Yuzhen (Author) and Liu, Gaoen (Author)
Journal or Proceedings Title	ASME Turbo Expo 2006: Power for Land, Sea, and Air
Journal Citation	3, pp. 569-579
Number of Pages	11
Year	2006
Place of Publication	United States
ISBN	079184238X
	0791837742
Digital Object Identifier (DOI)	https://doi.org/10.1115/GT2006-90612
Web Address (URL) of Paper	http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1587039
Conference/Event	ASME 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.
Keywords	Cooling , Discharge coefficient
ANZSRC Field of Research 2020	401201. Aerodynamics (excl. hypersonic aerodynamics)
Public Notes	Files associated with this item cannot be displayed due to copyright restrictions.
Byline Affiliations	Beihang University, China
Institution of Origin	University of Southern Queensland

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