Airfoil incorporating the structure method and a flow control structure for controlling coolant flow in the airfoil

摘要

A coolant flow control structure (42) is provided to channel cooling media flow to the fillet region (60) defined at the transition between the wall of a nozzle vane (16) and a wall (12) of a nozzle segment, for cooling the fillet region. In an exemplary embodiment, the flow control structure defines a gap (65,67) with the fillet region to achieve the required heat transfer coefficients in this region to meet part life requirements. IMAGE