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Kefu Wang, Yiqun Ao, Kai Zhao, Tao Zhou and Feng Li
Shaped cooling holes have received considerable attention in recent years due to their potential to improve heat transfer while minimizing pressure drop. In this study, the effects of lobe-shaped cooling holes on film cooling performance and turbulent fl...
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Xiaojun Wu, Xin Du and Chunhua Wang
Film cooling effectiveness can be improved significantly by embedding a round hole in trenches or craters. In this study, film cooling performances of a transverse trench, W-shaped trench and elliptic trench were compared and analyzed in detail. The CFD ...
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Wei Shi, Pingting Chen, Xueying Li, Jing Ren and Hongde Jiang
The film cooling holes in the blade of modern gas turbines have commonly been manufactured by laser drilling, Electric Discharge Machining (EDM), and Additive Manufacturing (AM) in recent years. These manufacturing processes often result in small geometr...
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Sheng-Chang Zhang, Jing-Zhou Zhang and Xiao-Ming Tan
Film cooling enhancement by incorporating an upstream sand-dune-shaped ramp (SDSR) to the film hole exit was numerically investigated on a flat plate under typical blowing ratios ranging from 0.5 to 1.5. Three heights of SDSRs were designed: 0.25D, 0.5D,...
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James S. Porter, Jane E. Sargison, Gregory J. Walker, and Alan D. Henderson
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Yoji Okita and Masakazu Nishiura
Pág. 331 - 339
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Michael Gritsch, Will Colban, Heinz Schär, and Klaus Döbbeling
Pág. 718 - 725
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