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http://dx.doi.org/10.5139/JKSAS.2016.44.8.641

Numerical Study on the Effect of Injection Nozzle Shape on the Cooling Performance in Supersonic Film Cooling  

Kim, Sang-Min (The 1st Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.44, no.8, 2016 , pp. 641-648 More about this Journal
Abstract
In this study, the effect of injection nozzle shape on the supersonic film cooling performance is analyzed using CFD. The design parameters are inside and outside angles of upper plate of nozzle and nozzle tip thickness. It is observed that the mass flow rate of film cooling decreases with increase of inside angle, while the effect of the change of mass flow rate on the film cooling effectiveness is relatively small. In addition, cooling performance is generally reduced, except ahead of the local region where shock wave interaction with film cooling occurs, in accordance with the growth of the outside angle and tip thickness. In this paper, the CFD simulation is performed using a commercial software, ANSYS Fluent V15.0, and the CFD model is validated by comparing it with the experimental data shown in preceding research.
Keywords
Film Cooling; Injection Nozzle; CFD;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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