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Aerodynamics of Cooling Jets Introduced in the Secondary Flow of a Low Speed Turbine Cascade PUBLIC ACCESS

[+] Author Affiliations
F. Bario, F. Leboeuf, A. Onvani, A. Seddini

C.N.R.S. U.A. 263-Ecole Centrale De Lyon, Ecully, France

Paper No. 89-GT-192, pp. V001T01A078; 9 pages
doi:10.1115/89-GT-192
From:
  • 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

abstract

The aerodynamic behaviour of cold discrete jets in a cold secondary flow is investigated. Configurations including single jets and rows of jets are studied.

These jets are introduced through the side wall of a low speed nozzle turbine cascade. The experimental set up and the jet behaviour are fully described.

The effects of location with respect to the blades, mass flow ratio, yaw and incidence angles on the aerodynamics of single jets are investigated. The influence of neighbouring jets is detailed in the case of multiple jet configurations. The interaction with the secondary flow is presented. The local pressure and velocity fields, trajectories and visualizations are discussed. The measuring apparatus includes a five hole probe and an hot wire for intermittency measurements.

Copyright © 1989 by ASME
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