A fringe type laser anemometer is described. Features of the anemometer include; a rapid and efficient data acquisition process; a detailed real time graphic display of the data being accumulated; and input laser beam positioning that maximizes the size of the intrarotor region being mapped. Results are presented that demonstrate the anemometer's capability in flow mapping within a transonic axial flow compressor rotor. A velocity profile, derived from 30,000 measurements along 1000 sequential circumferential positions covering 20 blade passages, was obtained in 30 seconds. The use of fluorescent seed particles allowed flow measurements near the rotor hub and the casing window.
Efficient laser anemometer for intra-rotor flow mapping in turbomachinery
ASME 25th Ann. Intern. Gas Turbine Conf. ; 1980 ; New Orleans
1979-01-01
Conference paper
No indication
English
NTRS | 1982
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