轴流风机后导叶三维数值优化设计方法及其应用  

A 3-D Numerical Optimization Design Method and Its Application in Axial Fans with Outlet Guide Vanes

作　　者：孟丽[1] 林丽华[1] 吴海英[1] 陈永宁 何海江 陶中兰[3] 李嵩[4] 

机构地区：[1]内蒙古工业大学能源与动力工程学院,内蒙古010051 [2]浙江亿利达风机股份有限公司 [3]内蒙古工业大学能动学院,内蒙古010051 [4]清华大学航空航天学院

出　　处：《风机技术》2014年第3期48-52,共5页Chinese Journal of Turbomachinery

摘　　要：基于轴流风机安装后导叶能明显改善性能,但用目前使用的二维理想的工程方法无法设计良好导叶,必须通过大量后导叶安装角试验,才能改进使用。本文提出轴流风机后导叶三维数值优化设计方法,并用于一个商用风机,设计工况全压和全压效率均提高13%,有很好的变工况性能;本文还对比了用传统工程方法设计的后导叶的性能。The performance of an axial flow fan can be obviously improved after installing outlet guide vanes. But the commonly used 2-D ideal engineering method can’t be applied to design the good outlet guide vanes. After that a lot of experiments about the installing angle of outlet guide vane must be carried out in order to improve the designed vanes. In this paper, a 3-D numerical optimization design method of axial flow fans with outlet guide vanes is presented and used to a＆amp;nbsp;commercial fan. The total pressure and its efficiency are improved about 13% at the design operation and the performances of the off-design operation are also obviously improved. Moreover, the performance of the outlet guide vanes designed by the traditional engineering method is also compared with the presented one in the paper.

关 键 词：轴流风机 导叶 气动设计 数值模拟 

分 类 号：TH432.1[机械工程—机械制造及自动化]