| 摘要 |
A turbine assembly having at least one rotor blade comprises an airfoil having a pressure sidewall, a suction sidewall and a tip portion having a tip cap. A tip is disposed on the tip cap. A plurality of blade tip cooling holes are positioned within the airfoil near the tip portion. Cooling grooves are disposed within the airfoil to connect the blade tip cooling holes with the top portion of the tip to transition cooling flow from the cooling holes to the tip portion.
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