The paper addresses the use of a rib style (partial height) vaned diffuser to improve the flowfield downstream of a high flow coefficient centrifugal impeller. Empirical and analytical (3-D CFD) results are presented for both the original vaneless diffuser and the replacement rib configuration. Comparisons are made between the CFD results and the data obtained through single stage rig (SSTR) testing. Comments are offered regarding the qualitative and quantitative agreement between the empirical and analytical results.
- International Gas Turbine Institute
Analytical and Test Experiences Using a Rib Diffuser in a High Flow Centrifugal Compressor Stage
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Sorokes, JM, & Kopko, JA. "Analytical and Test Experiences Using a Rib Diffuser in a High Flow Centrifugal Compressor Stage." Proceedings of the ASME Turbo Expo 2001: Power for Land, Sea, and Air. Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery. New Orleans, Louisiana, USA. June 4–7, 2001. V001T03A023. ASME. https://doi.org/10.1115/2001-GT-0320
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