Study of Various Factors Affecting Secondary Loss Vortices Downstream a Straight Turbine Cascade PUBLIC ACCESS

[+] Author Affiliations
A. Mobarak, M. G. Khalafallah

Cairo University, Egypt

H. A. Heikal

Helwan University, Egypt

A. M. Osman

Zagazig University, Egypt

Paper No. 89-GT-12, pp. V001T01A005; 9 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


An experimental investigation is carried out to study the effect of inlet boundary layer thickness, aspect ratio and exit Mach number on the energy loss and on the behaviour of secondary vortices downstream of a straight turbine cascade of blades having 82° turning angle.

Some correlations were deduced which predict, the cascade efficiency and the gross secondary loss coefficient as function of the downstream distance.

Copyright © 1989 by ASME
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