Experimental Study on Film Cooling Flow Characteristics of Turbine Stator Blade at Different Setting Angles

Ling Zhang; Hai Rui Dong; Guo Liang Wen

doi:10.4028/www.scientific.net/AMR.614-615.592

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 614-615Experimental Study on Film Cooling Flow...

Experimental Study on Film Cooling Flow Characteristics of Turbine Stator Blade at Different Setting Angles

Abstract:

The technology of film cooling is one of the most effective means of protecting the turbine blades. In this paper, flow structures of the turbine stator blade with six hole-rows at different blowing ratio（M=0.5, 1.0 and 1.5）and setting angles（β=40°, 50°, 60°, 70°, 80° and 90°） was measured by PIV in piston flow type of low-speed wind tunnel laboratory. Velocity was analyzed. Results show that: velocity gradient of suction side was much higher than pressure side and increased with setting angle reduction; Adherence of film is influenced by setting angle and blowing ratio, when M=1.0 and β=70° anchorage dependent is best and suction side is greater than pressure side.

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Periodical:

Advanced Materials Research (Volumes 614-615)

Pages:

592-595

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.614-615.592

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Online since:

December 2012

Authors:

Ling Zhang, Hai Rui Dong, Guo Liang Wen

Keywords:

Experimental Study, Film Cooling, PIV, Setting Angle

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