Numerical study of rotating stall in a pump vaned diffuser

被引：72

作者：

Sano, T

Yoshida, Y

Tsujimoto, Y

Nakamura, Y

Matsushima, T

机构：

[1] Mitsubishi Heavy Ind Co Ltd, Takasago Machinery Works, Takasago, Hyogo 6768686, Japan

[2] Osaka Univ, Grad Sch Engn Sci, Toyonaka, Osaka 5608531, Japan

[3] Mitsubishi Heavy Ind Co Ltd, Takasago Res & Dev Ctr, Takasago, Hyogo 6768686, Japan

[4] Software Cradle Co Ltd, Osaka 5320011, Japan

来源：

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2002年 / 124卷 / 02期

关键词：

D O I：

10.1115/1.1459076

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper treats the flow instabilities in a vaned diffuser by using CFD. A commercial used for the present work. It was found code with the standard K-E turbulence model was use that the flow instabilities in the vaned diffuser: i.e., rotating stall, alternate blade stall, and asymmetric stall, could be simulated It by the present calculations. These instabilities were observed in a range with negative slope of the pressure performance curve of the diffuser. The rotating stall onset flow rate is larger for the case with larger clearance between the impeller and diffuser vanes.

引用

页码：363 / 370

页数：8

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