| 摘要 |
PURPOSE:To contrive to enhance the convection cooling efficiency by a structure wherein rib walls partitioning the flow passages in the interior of a blade, through which cooling fluid convects, are made into convex forms. CONSTITUTION:Rib walls 8-10 partitioning the flow passage in the interior of a blade, through which cooling fluid flowed therein from the blade root part convects, are made into convex forms. Thus, the crosssectional area of the flow passage is reduced and consequently the flow speed in said passage is increased, resulting in enabling to enhance the cooling efficiency due to the increased coefficient of heat transfer by convection. |
