| 摘要 |
<p>The blade (10) has an aerodynamic section (50) presenting a concave side (56), and a platform (60) extending to one of ends of the aerodynamic section in an entire direction perpendicular to a longitudinal direction of the aerodynamic section. The platform has an air injection passage (16) formed in a groove (40) for injecting an air flow in an inter-sectioned channel, where the injected air flow is guided by walls of the groove. The groove runs parallel to the concave side near a downstream part of the concave side.</p> |
