Abstract
at five different blowing ratios between 0.4 and 1.6, both with and without moveable lands mounted on the trailingedge model. The measurement results indicate clearly that the blowing ratio and the existence of the lands would affect the film cooling effectiveness of the tailing-edge design significantly. The detailed film cooling effectiveness maps were correlated with the characteristics of the flow structures revealed from the particle image velocimetry measurements to elucidate underlying physics and to explore and optimize design paradigms for a better protection of the critical portions of turbine blades from the extremely hot environment.
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