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 purposes.
Numerical Analysis of the Vaned Diffuser of a Transonic Centrifugal Compressor
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Marconcini, M, Rubechini, F, Arnone, A, & Ibaraki, S. "Numerical Analysis of the Vaned Diffuser of a Transonic Centrifugal Compressor." Proceedings of the ASME Turbo Expo 2007: Power for Land, Sea, and Air. Volume 6: Turbo Expo 2007, Parts A and B. Montreal, Canada. May 14–17, 2007. pp. 987-995. ASME. https://doi.org/10.1115/GT2007-27200
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