Effects of Different Blade Angle Distributions on Centrifugal Compressor Performance

被引：16

作者：

Roytta, Pekka ^{[1
]}

Gronman, Aki ^{[1
]}

Jaatinen, Ahti ^{[1
]}

Turunen-Saaresti, Teemu ^{[1
]}

Backman, Jari ^{[1
]}

机构：

[1] Lappeenranta Univ Technol, Inst Energy, POB 20, Lappeenranta 53851, Finland

来源：

INTERNATIONAL JOURNAL OF ROTATING MACHINERY | 2009年 / 2009卷

关键词：

D O I：

10.1155/2009/537802

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A centrifugal compressor with three different shrouded 2D impellers is studied numerically. All impellers have the same dimensions, and they only differ in channel length and geometry. Noticeable differences in efficiency are observed. Two different turbulence models, Chien's k - epsilon and k - omega SST, are compared. For this case, k - omega SST was found more realistic. The hypothesis that pressure losses in a curved duct and in an impeller passage behave similarly is suggested and found inadequate. Copyright (C) 2009 Pekka R oytta et al.

引用

页数：9

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