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Heat Transfer Research
Facteur d'impact: 0.404 Facteur d'impact sur 5 ans: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimer: 1064-2285
ISSN En ligne: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v41.i6.30
pages 601-626

Film Cooling Simulation and Control

Sumanta Acharya
Illinois Institute of Technology

RÉSUMÉ

Numerical simulation strategies for film cooling flows ranging from time-averaged simulations based on Reynolds-averaged equations to fully unsteady simulations are presented and reviewed. Simulation results are presented for both cylindrical and shaped holes with the key emphasis in this paper on the accuracy of the averaged results and on the film-cooling flow physics. It is shown that the Reynolds-averaged equations with turbulence models need anisotropy and realizability corrections to provide correct predictions for the cooling effectiveness. Spatially filtered unsteady simulations (called large-eddy simulations) appear to provide the needed quantitative accuracy and the rich flow physics representing such flows.


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