| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine blade which includes a swirl portion provided at a cooling channel entrance through which cooling air is passed, thereby increasing the cooling performance of a root unit and significantly improving the stiffness of the root unit.SOLUTION: A turbine blade according to the present invention comprises a cooling channel through which cooling air is passed; and a swirl portion provided at an entrance of the cooling channel so as to form a swirl flow in the cooling air. The turbine blade may increase cooling performance of a root unit, improve the stiffness of the root unit, and significantly increase the internal heat transfer efficiency of a blade unit. |
