Effect of inlet box on performance of axial flow fans

被引：2

作者：

Li J. ^{[1
]}

Tian H. ^{[1
]}

Yuan X. ^{[1
]}

机构：

[1] School of Energy and Power Engineering, Xi'an Jiaotong University

来源：

Frontiers of Energy and Power Engineering in China | 2008年 / 2卷 / 4期

基金：

中国国家自然科学基金;

关键词：

Axial flow fan; Fan performance; Inlet box; Numerical simulation;

D O I：

10.1007/s11708-008-0087-1

中图分类号：

学科分类号：

摘要：

Numerical investigations on 3D flow fields in an axial flow fan with and without an inlet box have been extensively conducted, focusing on the variation of fan performance caused by the internal flow fields and the velocity evenness at the exit of the inlet box. It is interesting to find that although the inlet box is well designed in accordance with basic design principles, there is a flow separation region in it. Furthermore, this flow separation and the resulting uneven velocity distribution at the exit lead to some decrease in the efficiency and an increase in the total pressure rise of the fan. This research shows that the inlet box needs further improvement and such a check on the flow fields is of value for the design of inlet boxes. © 2008 Higher Education Press and Springer-Verlag GmbH.

引用

页码：390 / 394

页数：4

共 7 条

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