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International Journal of Rotating Machinery
Volume 2012, Article ID 518381, 11 pages
Research Article

Meridional Considerations of the Centrifugal Compressor Development

Department of Mechanical Engineering, University of Wisconsin, Milwaukee, WI 53211, USA

Received 29 January 2012; Accepted 4 September 2012

Academic Editor: A. Engeda

Copyright © 2012 C. Xu and R. S. Amano. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Centrifugal compressor developments are interested in using optimization procedures that enable compressor high efficiency and wide operating ranges. Recently, high pressure ratio and efficiency of the centrifugal compressors require impeller design to pay attention to both the blade angle distribution and the meridional profile. The geometry of the blades and the meridional profile are very important contributions of compressor performance and structure reliability. This paper presents some recent studies of meridional impacts of the compressor. Studies indicated that the meridional profiles of the impeller impact the overall compressor efficiency and pressure ratio at the same rotational speed. Proper meridional profiles can improve the compressor efficiency and increase the overall pressure ratio at the same blade back curvature.