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Development of Compressor for High-Pressure Ratio Turbocharger
Published November 03, 1998 by Institution of Mechanical Engineers in United Kingdom
A centrifugal compressor for a high-pressure ratio turbocharger was developed. Analysis with 3D CFD code was fully applied to improve the conventional compressor performance. The calculated results showed that the improvement of the loading distribution near the leading edge of splitter blade was needed. Both the oil flow visualization and the calculation with CFD code in the vaned diffuser showed the large separation region due to the flow angle non-uniformity at the vaned diffuser inlet. Modification of the impeller and the diffuser geometry solved these problems. For the large scaled-up compressor, a peak adiabatic efficiency of at least 85% was achieved up to a pressure ratio of 4.3, with a flow margin from surge to peak efficiency of at least 15%.
- H. Tamaki - Ishikawajima-Harima Heavy Industries Co. Ltd.
- S. Yamaguchi - Ishikawajima-Harima Heavy Industries Co. Ltd.
- H. Nakao - Ishikawajima-Harima Heavy Industries Co. Ltd.
- H. Yamaguchi - Ishikawajima-Harima Heavy Industries Co. Ltd.
- K. Ishida - Ishikawajima-Harima Heavy Industries Co. Ltd.
- K. Mitsubori - Ishikawajima-Harima Heavy Industries Co. Ltd.