An Investigation of Heat Transfer and Friction in Channels with Oblique Segment Fins and Spiral Fins for Cooling Turbine Blades

摘要

The results of an experimental investigation of the laws governing heat transfer and friction in semicylindrical cooling channels equipped with oblique segment fins and spiral fins are described. Generalized empirical relationships are obtained that express the averaged heat transfer and the friction in the internal passages of the leading edges of cooled turbine blades as functions of the governing design parameters.