组合叶栅的数值计算研究  

NUMERICAL SIMULATION OF COMBINED CASCADES

作　　者：杨波[1] 钟芳源[1] 王富民[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：《工程热物理学报》2009年第1期61-64,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.50676054)

摘　　要：采用混合紊流模型计算了以NACA0012为原始翼型的组合叶栅内部流场。通过计算证明,选取适当的叶栅组合参数重合度B与栅距比T,可以使组合叶栅的整体性能得到大幅度的改善。组合叶栅的整体气体性能明显优于单列叶栅的气动性能。The improved combined turbulence model, combining the K-ε model with K-w model, is suitable to computation of the inflow field of combined cascades. Based on analyzing and comparing calculation results of NACA0012 combined cascade, it is well found that the aerodynamic characteristic of combined cascades is super to the single airfoils cascades. If adopting suitable overlap ratio B and pitch ratio T, the aerodynamic performance of combined cascade could be improved greatly.

关 键 词：组合叶栅 翼型 紊流模型 

分 类 号：TH4[机械工程—机械制造及自动化]