| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for preventing backflow in an airfoil by forming a separation zone at a cooing slot inlet and making cooling fluid flow through the cooling slot, and forming a cooling layer. SOLUTION: The method comprises a stage making cooling fluid flow toward the cooling slot 45 in a first direction through a cooling passage 91, a stage making cooling fluid flow toward the cooling slot in a second direction through a cooling passage, a stage forming the separation zone near the cooling slot inlet 96, and a stage making cooling fluid flow through the cooling slot and out of the cooling slot and forming a layer at a trailing edge of the airfoil 60. COPYRIGHT: (C)2008,JPO&INPIT
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