LDV Measurements and Investigation of Flow Field Through Radial Turbine Guide Vanes

[+] Author and Article Information
Hasan Eroglu, Widen Tabakoff

Department of Aerospace Engineering and Engineering Mechanics, University of Cincinnati, Cincinnati, Ohio 45221

J. Fluids Eng 113(4), 660-667 (Dec 01, 1991) (8 pages) doi:10.1115/1.2926531 History: Received August 25, 1989; Online May 23, 2008


The results of LDV measurements and investigation of the detailed flow field in a radial inflow turbine nozzle are presented. The flow velocities were measured at upstream, inside and downstream of the nozzle blades for two different mass flow rates, using a three-component LDV system. Results are presented as contour plots of mean velocities, flow angles, and turbulence intensities. The flow field inside the nozzle blade passages was found to be influenced by the upstream scroll geometry. The flow turbulence increased in the downstream flow direction. The LDV mean flow results on the blade-to-blade midspan plane which is parallel to the end walls were also compared with an inviscid, “panel method” solution.

Copyright © 1991 by The American Society of Mechanical Engineers
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