Date of Award
Master of Science
Department of Aeronautics and Astronautics
James L. Rutledge, PhD
The study of gas turbine engine performance improvement requires extracting usable work from the hot section turbine. To prevent heat damage to turbine blades, film cooling is employed. Low temperature tests are conducted at ambient pressure on scale models to analyze the effects of gas flow parameters on scaling adiabatic effectiveness at easily repeatable conditions. This research aims to determine how matching coolant flow rate parameters Momentum Flux Ratio (I) and Advective Capacity Ratio (ACR) can scale adiabatic effectiveness on flat plate and leading edge geometries between air and carbon dioxide gas. Results indicate improvement in scaling adiabatic effectiveness when both I and ACR are matched.
DTIC Accession Number
Glowiak, Evan C., "Scaling Gas Turbine Film Cooling Adiabatic Effectiveness through Simultaneous Matching of Momentum Flux Ratio and Advective Capacity Ratio" (2021). Theses and Dissertations. 4976.