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

Zhao, Mengmeng and Zhang, Chi and 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. ISSN 1000-8055

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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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: No
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions. [Text in Chinese].
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 17 Nov 2017 01:46
Last Modified: 01 Dec 2017 06:17
Uncontrolled Keywords: Aerospace propulsion system; aircraft engine; cooling effectiveness; curved tube flow
Fields of Research : 09 Engineering > 0901 Aerospace Engineering > 090107 Hypersonic Propulsion and Hypersonic Aerodynamics

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