Investigation of Hot Streak Migration and Film Cooling Effects on the Heat Transfer in Rotor/Stator Interacting Flows.

The specific objectives of this effort are to extend the three- dimensional rotorstator interaction code, ROTOR3, to investigate hot streak migration and film cooling effects on the passage flow and blade surface heat transfer for an axial flow turbine stage. These objectives are part of an overall plan to extend the capabilities of this numerical procedure and to determine the potential of this technique to impact the design of future rotating turbomachinery components. The principal benefits that will result from this effort are A diagnostic analysis and code which can be used to help design turbine blades with increased efficiency and reduced cooling requirements. An open literature demonstration on the use of Computational Simulation and Scientific Visualization for gaining insight into complex turbomachinery flows. Acceleration of the transition of large-scale computational analyses to the turbomachinery design process through joint involvement between UTRC and Pratt and Whitney turbine engines, and A useful and proven analytical tool that can be used with existing and future engine design procedures.