A Study of Axial Turbine Loss Models in a Streamline Curvature Computing Scheme

[+] Author and Article Information
R. K. Sullerey

Aeronautical Engineering Department, Indian Institute of Technology, Kanpur, India

S. Kumar

Defence Research and Development Organization, Hyderabad, India

J. Eng. Gas Turbines Power 106(3), 591-597 (Jul 01, 1984) (7 pages) doi:10.1115/1.3239611 History: Received February 07, 1984; Online October 15, 2009


This paper describes a study of the suitability of various loss models for axial turbines as assessed with a streamline curvature computing scheme for the meridional flow involved. The important loss models in this study include the Balje/Binsley loss correlation and its modification, and a recently modified form of the Ainley/Mathieson/Dunham/Came loss correlation. Test cases for the application of the computing scheme include single-, three-, and four-stage turbines for which extensive design and measured data are available. The computed results have been compared with test results for design and off-design mass flow rates and design pressure ratio. The results indicate that the Balje/Binsley profile loss correlation with the modified Dunham/Came secondary loss correlation give results that compare best with measured data. A modified form of the Ainley/Mathieson/Dunham/Came loss model is nearly as accurate.

Copyright © 1984 by ASME
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