An Experiment Study of Wall Slot Jets Pertinent to Trailing Edge Cooling of Turbine Blades

Authors

Zifeng Yang, Wright State University - Main Campus
Anand Gopa Kumar, Iowa State University
Hirofumi Igarashi, Iowa State University
Hui Hu, Iowa State University

Document Type

Article

Publication Date

1-1-2010

Identifier/URL

42938235 (Pure)

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Catalog Record

Abstract

An experimental study was conducted to quantify the flow characteristics of wall jets pertinent to trailing edge cooling of turbine blades. A high-resolution stereoscopic PIV system was used to conduct detailed flow field measurements to quantitatively visualize the evolution of the unsteady vortex and turbulent flow structures in cooling wall jet streams and to quantify the dynamic mixing process between the cooling wall jet streams and the main stream flows. The detailed flow field measurements are correlated with the adiabatic cooling effectiveness maps measured by using pressure sensitive paint (PSP) technique to elucidate underlying physics in order to improve cooling effectiveness to protect the critical portions of turbine blades from the harsh ambient conditions.

Comments

Presented at the ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels - Montreal, QC, Canada, Aug 1 2010 - Aug 5 2010

Repository Citation

Yang, Z., Kumar, A., Igarashi, H., & Hu, H. (2010). An Experiment Study of Wall Slot Jets Pertinent to Trailing Edge Cooling of Turbine Blades. ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010, 149-158.
https://corescholar.libraries.wright.edu/mme/618

DOI

10.1115/FEDSM-ICNMM2010-30304