流体机械2017，Vol.45Issue(11)：22-28,7.DOI:10.3969/j.issn.1005-0329.2017.11.005
贯流风机叶轮参数的模拟研究
Numerical Investigations on the Impeller Parameters of the Cross Flow Fan
摘要
Abstract
Impeller parameters have great effect on the performance of the cross flow fan. Based on the blade provided by a company,the influences of several important blade parameters such as leading radiu(Ri),rear radiu(Ro),blade tilt angle (a) and camber angle(γ) on the flow field and performance of the cross flow fan,has been studied by two-dimensional steady simulation.The results show that,the ratio ofRi and Ro has great effect on boundary-layer separation of the blade surface,the boundary layer separation is inhibited and higher outlet flow rate is obtained whenRi/Ro>1. Blade tilt angle a of the prototype blade can be chosen in the ranges 25°≤a≤30°,and in which range,the fluctuation of the impeller inlet flow decreases with a increases. The greater the camber angleγ,the more the impeller works on the airflow. Moreover,when γ is equal to 90°,the flow rate achieves the maximum of 716.47 m3/h,enhanced 4.04％ compared to the original impeller.关键词
贯流风机/叶轮参数/流场特性/风机性能Key words
cross flow fan/impeller parameters/flow field characteristics/fan performance分类
机械制造引用本文复制引用
舒朝晖,张强,段亚雄..贯流风机叶轮参数的模拟研究[J].流体机械,2017,45(11):22-28,7.基金项目
广东省科技计划项目(2013B090600061) （2013B090600061）
