Turbine Blade

Abstract: An airfoil [78] comprises one or more internal cooling circuits [120, 122, 124]. The cooling circuit can further comprise a near wall cooling mesh [176], fluidly coupling a supply passage [172] to a mesh plenum [182]. The mesh plenum [182] can be disposed adjacent to the external surface of the airfoil [78] having a plurality of film holes [200] extending between the mesh plenum [182] and the external surface of the airfoil [78]. The mesh plenum [182] can further comprise a cross-sectional area sized to facilitate machining of the film holes [200] without damage to the interior [96] of the airfoil [78]. FIG. 4

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