| 摘要 |
<p>A moving vane (20) is formed with cooling passages (22, 23) partitioned by a rib (51), wherein cooling air (41) flows in through the cooling passage (22) and into the cooling passage (23) as indicated by an arrow (41e). A stagnant region (53) is formed in the corner at the front end of the cooling passage (22) where there is no cooling hole (50); however, a flow (41i) goes out of the vane through a cooling hole (2), so that a flow of cooling air is formed in this region. Further, at the front end of a rib (51) there is formed a peel region (52) due to the peeling of the flow, but the cooling air (41h) flows out of the vane through a cooling hole (1) and a flow of cooling air is produced in this region. Further, a film cooling hole construction is also disclosed wherein in a gas turbine moving-vane having multi-stage turbulators (28) formed on the inner wall surface (60) of the cooling passage, the peeling of the cooling air taking place between the turbulators (28) is eliminated.</p> |
