Numerical Analysis of the Vaned Diffuser of a Transonic Centrifugal Compressor

TitleNumerical Analysis of the Vaned Diffuser of a Transonic Centrifugal Compressor
Publication TypeJournal Article
Year of Publication2010
AuthorsMarconcini M, Rubechini F, Arnone A, Ibaraki S
JournalASME Journal of Turbomachinery
Volume132
Number4
Pagination041012
ISSN Number0889-504X
Accession NumberWOS:000277580000012
Other NumbersScopus 2-s2.0-77955297509
KeywordsCentrifugal Compressors, Turbochargers, Vaned Diffuser
Abstract

A three-dimensional Navier-Stokes solver is used to investigate the flow field of a high pressure ratio centrifugal compressor for turbocharger applications. Such a compressor consists of a double-splitter impeller followed by a vaned diffuser. Particular attention is focused on the analysis of the vaned diffuser, designed for high subsonic inlet conditions. The diffuser is characterized by a complex three-dimensional flow field, and influenced by the unsteady interaction with the impeller. Detailed Particle Image Velocimetry (PIV) flow measurements within the diffuser are available for comparison.

URLhttp://turbomachinery.asmedigitalcollection.asme.org/article.aspx?articleid=1468248
DOI10.1115/1.2988481
Original PublicationASME paper GT2007-27200
Refereed DesignationRefereed