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

[+] Author Affiliations
Hasan Eroglu, Widen Tabakoff

University of Cincinnati, Cincinnati, OH

Paper No. 89-GT-162, pp. V001T01A067; 11 pages
  • ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Toronto, Ontario, Canada, June 4–8, 1989
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7913-9
  • Copyright © 1989 by ASME


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 were found to be strongly influenced by the upstream scroll geometry. Significant end wall cross flows and flow mixing were observed. The flow turbulence increased in the downstream flow direction. The LDV mean flow results on the blade-to-blade plane at midspan location were also compared with an inviscid, “panel method” solution.

Copyright © 1989 by ASME
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