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An Off-Design Loss and Deviation Prediction Study for Transonic Axial Compressors PUBLIC ACCESS

[+] Author Affiliations
M. Çetin, A. Ş. Üçer

METU, Ankara, Turkey

Ch. Hirsch

Deinst Stromingsmechanica, VUB, Brussels, Belgium

G. K. Serovy

ISU, Ames, IA

Paper No. 89-GT-324, pp. V001T01A113; 8 pages
doi:10.1115/89-GT-324
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

A study on the design and off-design loss and deviation correlations was performed in which transonic compressor test data of 1970’s was used. Losses are considered as a whole and expressed by a total pressure loss coefficient with design and off-design parts identified separately. A modified version of NASA-2D minimum loss incidence correlation is proposed for DCA and MCA blades. Koch and Smith design loss correlation was found to be most satisfactory. For DCA and MCA blade profiles new off-design loss correlations were formulated. A correction is proposed to the Carter’s design deviation angle prediction method. For off-design deviation prediction Creveling’s correlation is easy to apply and gives most consistent and successful results.

Copyright © 1989 by ASME
Topics: Compressors , Design
This article is only available in the PDF format.

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