The objective of this work was to demonstrate the usability of a laser velocimeter data acquisition and reduction techniques for ensemble-averaged velocity measurements near and between rotating propeller or fan blades. A relatively simple experiment was set up to measure the flowfield of a two-bladed model propeller operating at static (non-flight) conditions to verify the data reduction procedures. The mean velocity and ensemble-averaged blade-to-blade velocity distributions were acquired. The experimental results, plotted in a novel consise form, showed separated and reversed flow regions on a rotating static propeller. The flowfield distortion along the blade height in the vicinity of the propeller disc was also observed.
Laser Velocimeter Measurements in a Model Propeller Flowfield
Lockheed Aeronautical Systems Company, Georgia Division, Marietta, Ga.
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Lepicovsky, J. (December 1, 1988). "Laser Velocimeter Measurements in a Model Propeller Flowfield." ASME. J. Fluids Eng. December 1988; 110(4): 350–354. https://doi.org/10.1115/1.3243562
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