Cooled Airfoil Trailing Edge And Method Of Cooling The Airfoil Trailing Edge

Abstract: An airfoil and method of cooling a airfoil including a leading edge a trailing edge a suction side a pressure side and at least one internal cooling channel configured to convey a cooling fluid is provided. A plurality of trailing edge bleed slots are in fluid communication with the at least one internal cooling channel wherein a downstream edge of the pressure side of the airfoil lies upstream of a downstream edge of the suction side to expose the plurality of trailing edge bleed slots proximate to the trailing edge of the airfoil. The at least one internal cooling channel is configured to supply the cooling fluid from a source of cooling fluid towards the plurality of trailing edge bleed slots. A plurality of obstruction features are disposed within the at least one internal cooling channel and at a downstream edge of the remaining pressure side. The one or more obstruction features are configured having a predefined substantially polygon shape to distribute a flow of the cooling fluid and provide distributed cooling to the plurality of trailing edge bleed slots.

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