Document Type
Article
Publication Version
Published Version
Publication Date
2-2009
Journal or Book Title
Journal of Fluids Engineering, Transactions of the ASME
Volume
131
Issue
2
First Page
0211021
Last Page
02110214
DOI
10.1115/1.3054287
Abstract
The cause of overprediction of cooling efficiency by unsteady Reynolds averaged simulations of turbine blade trailing edge cooling flow is investigated. This is due to the deficiency in the level of unsteady coherent energy very near to the wall. Farther from the wall, the Reynolds averaged simulation produces the correct level of mixing. Eddy simulations of the instantaneous turbulent eddying produce a close agreement to data on film effectiveness. In particular, they reproduce the reduction in cooling effectiveness toward the trailing edge that has been seen in experiments. The scale adaptive simulation model of Menter and Egorov (2005, "A Scale-Adaptive Simulation Modeling Using Two-Equation Models," AIAA Paper No. 2005-1095) is invoked for the eddy simulations.
Copyright Owner
ASME
Copyright Date
2009
Language
en
File Format
application/pdf
Recommended Citation
Joo, Jongwook and Durbin, Paul A., "Simulation of turbine blade trailing edge cooling" (2009). Aerospace Engineering Publications. 55.
https://lib.dr.iastate.edu/aere_pubs/55
Comments
This article is from Journal of Fluids Engineering 131 (2009): 021102, doi: 10.1115/1.3054287. Posted with permission.