Study of overall cooling effectiveness of discrete holes with different angles to concave wall

Article


Zhao, Mengmeng, Zhang, Chi, Lin, Yu-zhen and Liu, Gao-en. 2007. "Study of overall cooling effectiveness of discrete holes with different angles to concave wall." Journal of Aerospace Power. 22 (2), pp. 210-215.
Article Title

Study of overall cooling effectiveness of discrete holes with different angles to concave wall

Article CategoryArticle
AuthorsZhao, Mengmeng (Author), Zhang, Chi (Author), Lin, Yu-zhen (Author) and Liu, Gao-en (Author)
Journal TitleJournal of Aerospace Power
Journal Citation22 (2), pp. 210-215
Number of Pages5
Year2007
Place of PublicationChina
Web Address (URL)http://www.cnki.net
Abstract

Overall cooling effectiveness of curved walls with discrete angled holes has been studied in the paper through approximate simulation employing experimental concave walls with a constant curvature, which were applied intensively in the curved duct for turboshaft engine reverse-flow combustor. An experiment by heat transfer method for the overall cooling effectiveness was performed and the effect of blowing ratio on the overall spanwise averaged cooling effectiveness was obtained. The experimental result shows an improved overall cooling performance for the curved wall and the insignificant difference between the discrete holes with 30° inclined angle and normal to the concave wall at high blowing ratio. The flow in the curved duct has influence on the overall cooling effectiveness significantly.

KeywordsAerospace propulsion system; aircraft engine; cooling effectiveness; curved tube flow
ANZSRC Field of Research 2020400106. Hypersonic propulsion and hypersonic aerothermodynamics
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Files associated with this item cannot be displayed due to copyright restrictions. [Text in Chinese].

Byline AffiliationsBeihang University, China
Institution of OriginUniversity of Southern Queensland
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