Turbomachinery component cooling scheme

摘要

A turbomachinery component includes a surface exposed to hot working fluid flow. The surface has an undulating contour formed from a series of alternating protuberances and troughs. A set of three cooling outlets is associated with each trough.

主权项

1. An airfoil comprising:
a suction surface and a pressure surface both extending axially between a leading edge and a trailing edge region, as well as radially from a root section of the airfoil to a tip section of the airfoil; a first protuberance and a second protuberance both extending axially along the pressure surface at the trailing edge region, the first protuberance and the second protuberance spaced apart by a trough; a primary cooling outlet located in the trough; and a first secondary cooling outlet located on the first protuberance and a second secondary cooling outlet located on the second protuberance, wherein the first secondary cooling outlet and the second secondary cooling outlet are located upstream of the primary cooling outlet.