Analysis and Testing of Air-Cooled Turbine Rotor and Stator Blades

Abstract

Advancing turbine engine technology requires air-cooled turbines. Cooling mechanisms applied must be exploited in a practical manner to obtain maximum cooling effectiveness. Cooled turbine stator and rotor blade design requires rigorous analysis supplemented by verifying experimental data. Problem definition, analysis techniques, material application, cascade and engine testing, and correlation of data are presented for air-cooled turbines. Convection, impingement, film, transpiration, and combined cooling mechanisms are reviewed.