流体机械

2002, (03) 15-17+29

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计及尾迹宽度的轴流风机出口气流角修正方法
Correction Method to the Outlet Angle of Axial Flow Fan Considering the Wake Width

欧阳华,钟芳源,谷传纲
Ouyang Hua Zhong Fangyuan Gu Chuanggang

摘要(Abstract):

针对二元平面叶栅试验数据在轴流风机动叶气动计算中的局限性 ,通过将计及动叶三元效应、旋转及弯掠的损失计算模型与动叶尾迹宽度相关联 ,建立了尾迹宽度与出口气流角的几何关系 ,提出了一种有效的轴流风机出口气流角修正方法 ,该方法亦可对动叶的升力系数进行修正。
Aim at the limits of 2 D plane cascade dates now being widely used in the aerodynamic calculation of axial flow fans, a correction method to the outlet angle of axial flow fan considering the wake width was provided. With the relationship between corrected Howell loss model and blade wake width, a simple geometry connection between outlet angle and wake width was established. What's more, the fan blade life coefficient can also be amended by this method.

关键词(KeyWords): 轴流风机;气动计算;损失模型
Axial Flow Fan;Aerodynamic Calculation;Loss Model

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 欧阳华,钟芳源,谷传纲
Ouyang Hua Zhong Fangyuan Gu Chuanggang

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