摘要
通过数值模拟计算了采用轴向前掠、后掠及径向三种不同叶片型式的涡轮静叶栅流场 ,并根据计算结果分析了各流场流动参数沿流向、径向的分布特点 ,以及轴向前掠涡轮叶栅降噪增效。
A numerical investigation is carried out to study the effects of the aft and forward swept technology on areodynamic areoacoustic performaces of the turbine stator flow. Based on the numerical results of the stator flows with aft swept,forward swept and unswept blades,the distributions along axial and radial directions of flow variables are given.The analysis indicated that the forward swept stator had low total pressure losses and an improved acoustic performance compared with the unswept stator.The data also showed that the aft swept blade deteriorated the areodynamic and areoacoustic performace of the stator flow.
出处
《流体机械》
CSCD
北大核心
2000年第3期25-29,共5页
Fluid Machinery
关键词
叶栅
气动-声学性能
风机
swept blade,stator flow,areodynamic areoacoustic performance
