Although radial turbines are used in small turbochargers, real flow has never been conclusively cleared. Accordingly, we, the authors measured the internal flow of the rotating blades using a Laser Doppler Velocimeter (LDV) and a high frequency response pressure probe. The arising loss mechanism was examined, and comparison was done about analysis conducted by means of Computational Fluid Dynamics (CFD). The results of measurement with LDV and analysis by CFD are in good agreement, and the arising loss mechanism was found to consist of the accumulation of low energy fluid on shroud side suction surface of blade outlet.
Study on the Internal Flow of Radial Turbine Rotating Blades for Automotive Turbochargers
Sae Technical Papers
SAE 2002 World Congress & Exhibition ; 2002
2002-03-04
Conference paper
English
Study on the internal flow of radial turbine rotating blades for automotive turbochargers
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