直接反转完全可逆式组合叶栅的实验研究  

Study on a direct fully reversible combined cascade

作　　者：欧阳华[1] 杨波[1] 钟芳源[1] 谷传纲[1] 

机构地区：[1]上海交通大学动力机械与工程教育部重点实验室,上海200030

出　　处：《流体力学实验与测量》2002年第4期47-51,共5页Experiments and Measurements in Fluid Mechanics

摘　　要：针对矿井、隧道等行业对风机反风性能的要求,提出了一种动叶直接反转完全可逆式组合叶栅设计的新方案。该方案具有结构简单、正反向性能完全相同、便于采用现有成熟叶型等特点。通过平面叶栅试验确定了重叠度、栅距比等组合叶栅最佳组合参数,此外,试验结果表明在相同雷诺数下,组合叶栅的正反向最大升力系数C_(L max)和失速攻角α_(L max)较现有双对称叶型均有大幅度提高,显示出较好的应用前景。In this paper a new type fully reversible combined blade is presented, which can fully reverse airflow during the inverse ventilation by simple reversion. It is suitable for reversible axial flow fans used in tunnel and mine ventilation. Several important parameters are provided to describe the combined cascade. The optimal parameters such as overlap ratio and pitch ratio are determined through cascade experiment. Experiment results also show a big promotion of maximum lift coefficient C1max and stall attack angleα1max compared to the existing bi-directional symmetry airfoils.

关 键 词：实验研究 轴流通风机 反向通风 组合叶栅 压力测量 

分 类 号：TH432.1[机械工程—机械制造及自动化]