Development of Secondary Flow Field in a Low Solidity Diffuser in a Transonic Centrifugal Compressor Stage

TitleDevelopment of Secondary Flow Field in a Low Solidity Diffuser in a Transonic Centrifugal Compressor Stage
Publication TypeConference Proceedings
Year of Publication2002
AuthorsBonaiuti D, Arnone A, Hah C, Hayami H
Conference NameASME Turbo Expo
Volume5: Turbo Expo 2002, Parts A and B
Pagination445–454
ISBN Number0-7918-3610-X
Other NumbersScopus 2-s2.0-0037003641
KeywordsCentrifugal Compressors
Abstract

In the present paper, the flow structure inside a low-solidity diffuser of a transonic compressor was investigated in detail. Steady computations were carried out and compared to experimental data. The secondary flow development inside the diffuser was analyzed and the reason for the stall inception was detected. Unsteady calculations were performed for two operating points, one close to the choke and the other one close to the stall of the compressor, in order to assess the effect of the unsteadiness in the diffuser secondary flow development.

Notes

June 3–6, Amsterdam, The Netherlands, ASME paper 2002-GT-30371

URLhttp://link.aip.org/link/abstract/ASMECP/v2002/i3610X/p445/s1
DOI10.1115/GT2002-30371