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RESEARCH PAPERS

Laser Velocimeter Measurements in a Model Propeller Flowfield

[+] Author and Article Information
J. Lepicovsky

Lockheed Aeronautical Systems Company, Georgia Division, Marietta, Ga.

J. Fluids Eng 110(4), 350-354 (Dec 01, 1988) (5 pages) doi:10.1115/1.3243562 History: Received August 27, 1986; Online October 26, 2009

Abstract

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.

Copyright © 1988 by ASME
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