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Article
Simulation of turbine blade trailing edge cooling
Journal of Fluids Engineering, Transactions of the ASME
  • Jongwook Joo, Iowa State University
  • Paul A. Durbin, Iowa State University
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
2-1-2009
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.
Comments

This article is from Journal of Fluids Engineering 131 (2009): 021102, doi: 10.1115/1.3054287. Posted with permission.

Copyright Owner
ASME
Language
en
Date Available
2015-08-26
File Format
application/pdf
Citation Information
Jongwook Joo and Paul A. Durbin. "Simulation of turbine blade trailing edge cooling" Journal of Fluids Engineering, Transactions of the ASME Vol. 131 Iss. 2 (2009) p. 0211021 - 02110214
Available at: http://works.bepress.com/paul_durbin/10/