An Experimental Investigation on the Trailing Edge Cooling of Turbine Blades

Authors

Zifeng Yang, Wright State University - Main Campus
Hui Hu, Iowa State University

Document Type

Article

Publication Date

12-1-2012

Identifier/URL

42936468 (Pure)

Abstract

An experimental study was conducted to quantify the flow characteristics of the wall jets pertinent to trailing edge cooling of turbine blades. A high-resolution stereoscopic particle image velocimetry (PIV) system was used to conduct detailed flow field measurements to quantitatively visualize the evolution of the unsteady vortices and turbulent flow structures in the cooling wall jet streams and to quantify the dynamic mixing process between the cooling jet stream and the mainstream flows. The detailed flow field measurements were correlated with the adiabatic cooling effectiveness maps measured by using pressure sensitive paint (PSP) technique to elucidate underlying physics in order to explore/optimize design paradigms for improved cooling effectiveness to protect the critical portions of turbine blades from harsh environments.

Comments

This work is licensed under CC BY-NC-ND 4.0

Repository Citation

Yang, Z., & Hu, H. (2012). An Experimental Investigation on the Trailing Edge Cooling of Turbine Blades. Propulsion and Power Research, 1 (1), 36-47.
https://corescholar.libraries.wright.edu/mme/603

DOI

10.1016/j.jppr.2012.10.007