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Study on the Internal Flow of Radial Turbine Rotating Blades for Automotive Turbochargers
Technical Paper
2002-01-0856
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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.
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Osako, K., Higashimori, H., and Mikogami, T., "Study on the Internal Flow of Radial Turbine Rotating Blades for Automotive Turbochargers," SAE Technical Paper 2002-01-0856, 2002, https://doi.org/10.4271/2002-01-0856.Also In
References
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- Dawes, W.N. “Application of a three-dimensional viscous compressible flow solver to a high-speed centrifugal compressor rotor - secondary flow and loss generation” ImechE Paper No. C261/87 1987
- Doi Yoshiki “3D quantitative analysis of flows in radial turbines (Initial report concerning the influence of blade tip pitch on internal secondary flow” Proceedings of the Japanese Mechanical Engineering Society 1998