APPLICATION OF RECESS VANED CASING TREATMENT TO AXIAL-FLOW FANS

被引：26

作者：

AZIMIAN, AR

ELDER, RL

MCKENZIE, AB

机构：

[1] Department of Turbomachinery and Engineering Mechanics, School of Mechanical Engineering, Cranfield Institute of Technology, Cranfield, Bedford

来源：

JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME | 1990年 / 112卷 / 01期

关键词：

D O I：

10.1115/1.2927411

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The effect of applying a varied recessed casing treatment to a single-stage axial flow fan has been investigated. The influences of the axial position of the recess relative to the rotor leading edge and other geometric modifications of the vane passage have been examined. Significant improvements in stall margin were observed without (in some builds) loss in peak efficiency. Slow and fast frequency response yawmeter probes have been used in the study to examine both the steady flow conditions and the unsteady flow caused by rotating stall. © 1990 by ASME.

引用

页码：145 / 150

页数：6

共 18 条

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