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Review and Understanding on Sweep in Axial Compressor Design

[+] Author Affiliations
Lucheng Ji

Chinese Academy of Sciences, Beijing, China

Jiang Chen

Beijing University of Aeronautics and Astronautics, Beijing, China

Feng Lin

Indiana Institute of Technology, Fort Wayne, IN

Paper No. GT2005-68473, pp. 177-185; 9 pages
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 6: Turbo Expo 2005, Parts A and B
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4730-6 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME


As a means of improving axial compressor performance, sweep technique has been investigated for over half a century and gained wide uses, in the past one decade. However, there is still diverse controversy about the roles of sweep in axial compressor design. In this paper, historical remarks about the sweep are presented firstly. Then, an understanding about the role of sweep is put forward. That is, the sweep is a degree of freedom (DOF) of blade design that emphasizes on matching the aerodynamic loading of every blade element along the whole span within the full operation range. The present understanding about the role of sweep may lead it a more sophisticated use.

Copyright © 2005 by ASME
Topics: Compressors , Design



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