Near-blade flow structure modification

In this paper, the importance of near-blade flow structure influence on the performance of a centrifugal compressor was discussed. The negative effects of eddies and secondary flows appearance were described, together with the proposal of their reduction. Three-dimensional analyses were performed fo...

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Bibliographic Details
Published in:Journal of physics. Conference series 2016-10, Vol.760 (1), p.12013
Main Authors: Kura, T, Fornalik-Wajs, E
Format: Article
Language:English
Subjects:
Centrifugal compressors
Physics
Secondary flow
Three dimensional analysis
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Summary:In this paper, the importance of near-blade flow structure influence on the performance of a centrifugal compressor was discussed. The negative effects of eddies and secondary flows appearance were described, together with the proposal of their reduction. Three-dimensional analyses were performed for the rotors. Focus was placed on the blade's 3D curvature impact on the efficiency of compression, and the influence of blade-shroud tip existence. A few design proposals were investigated - their performance maps were the basis of further analysis. Proposed modification of blade shape changed the near-blade flow structure and improved the compressor performance.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/760/1/012013