| 摘要 |
<p>A plurality of film cooling holes (11) are formed, so as to communicate with a front cooling passage (7), in a vane surface (3a) on the front-edge side of a stator vane body (3) of a turbine stator vane (1). The hole cross-section of each of the film cooling holes (11) has a rectangular long-hole shape extending in a direction (PD) parallel to the cross-section along the span direction (SD) and having a rounded corner. The hole-center line (11c) of each of the film cooling holes (11) is inclined with respect to the thickness direction (TD) in the cross-section along the span direction (SD). The exit-side portion (11e) of the hole wall surface of each of the film cooling holes (11) is inclined with respect to the thickness direction (TD) by a greater degree than that of the hole-center line (11c).</p> |
