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Forrest Ames University of North Dakota Mechanical Engineering Professor and Associate Dean for Academic Affairs forrest.ames@engr.und.edu Poster Title: Experimental Investigation of Low Pressure Variable-Speed Turbine Aerodynamics: Benchmark Data Set Abstract: A closed loop compressible flow facility has been developed to study gas turbine aerodynamics at engine Mach numbers at low to moderate Reynolds numbers. The facility has been used to study vane aerodynamics and heat transfer over a broad range of Reynolds numbers (90,000 through 1,000,000) at engine relevant (0.7 through 0.9) Mach numbers. These data show the significance of Reynolds number lapse. The facility is currently being readied to investigate the influence of incidence angle (beta angle from -17째 to 40째) and Reynolds number (50,000 to 530,000) on the aerodynamics of a variable speed turbine blade design. This current research is funded by NASA and is being coordinated with the Turbine Branch at NASA Glenn.