离心叶轮反问题气动设计的简易评价Simple Evaluation of Aerodynamic Design of Centrifugal Impeller
于跃平,朱晓农,陈启明,胡四兵,黄文俊,饶杰,王鹏亮,董帆,陈升
YU Yue-ping,ZHU Xiao-nong,CHEN Qi-ming,HU Si-bing,HUANG Wen-jun,RAO Jie,WANG Peng-liang,DONG Fan,CHEN Sheng
摘要(Abstract)：
综述了目前国内外离心叶轮反问题气动设计评价现状与局限性,结合工程实际,从反问题气动计算设计过程自然形成的速度场与求解出的叶轮几何参数出发,开展二维不可压叶片表面边界层及损失﹑叶轮内扩压水平﹑叶轮进口诱导速度比﹑叶片进口前缘冲角及相对马赫数计算,对反问题气动设计计算进行气动效率﹑失速点﹑阻塞点简易定量评估。这些评价结果与CFX计算比较,对应相对误差约为2.6%~6.1%,完全满足工程设计需求,可对透平机械工业设计作出快速评价提供借鉴。
Review the current the centrifugal impellers inverse aerodynamic design and evaluation of the status quo and limitation of,the author team combined with the engineering practice,from the inverse problem of gas dynamic design process of the natural formation of the velocity field and solving the geometric parameters of the impeller of calculation,to carry out two- dimensional incompressible leaves surface boundary layer and loss,the impeller diffuser and impeller inlet induced velocity ratio,blade inlet edge punching angle and relative Mach number calculation,for the inverse problem of aerodynamic design and calculation of gas dynamic efficiency,stall point,blocking some simple quantitative evaluation. These results are compared with those of the CFX calculation. The relative error is about 2. 6% ~ 6. 1%,which can meet the engineering design requirements. It can provide a reference for the rapid evaluation of turbine machinery industry design.
关键词(KeyWords)：
叶轮反问题;气动设计;简易定量评估
impeller inverse problem;aerodynamic design;simple quantitative evaluation
基金项目(Foundation):
作者(Author):
于跃平,朱晓农,陈启明,胡四兵,黄文俊,饶杰,王鹏亮,董帆,陈升
YU Yue-ping,ZHU Xiao-nong,CHEN Qi-ming,HU Si-bing,HUANG Wen-jun,RAO Jie,WANG Peng-liang,DONG Fan,CHEN Sheng
参考文献(References)：
- [1]徐忠.离心压缩机原理[M].北京:机械工业出版社,1988.
- [2]陈福芳.三元流动理论在离心压缩机叶轮设计中的应用[J].透平压缩机械,1978,32(4)∶1-24.
- [3]Japikse D.Centrifugal Compressor Design and Performance[M].Concepts ETI,Inc.,Wilder,VT1996.
- [4]Aungier RH.Centrifugal Compressors-A Strategy for Aerodynamic Design and Analysis[M].ASME Press,New York,2000.
- [5]Manabu Yagi,Tadaharu Kishibe,Takanori Shibata.Performance Improvement of Centrifugal Compressor Imellers by Optimizing Blade-Loding Distribution[D].Proceedings of ASME Turbo Expo 2008,Berlin,Germany,2008.
- [6]于跃平,陈启明,胡四兵,等.离心鼓风机和离心压缩机的性能预测[J].流体机械,2009,37(10)∶24-29.
- [7]王尚锦.离心压缩机三元流动理论及应用[M].西安:西安交通大学出版社,199l.
- [8]朱报祯,郭涛.离心压缩机[M].西安:西安交通大学出版社,1989.
- [9]胡效东,田强,戚振,等.基于滑移网格的反应釜内部流体动力学特性研究[J].压力容器,2013,30(7):30-38,55.
- [10]贺丹,楚武利.串列叶片对离心风机叶轮性能及内部流场的影响[J].流体机械,2013,41(12):27-31.
- [11]谷传文,陈榴,吴萍,等.基于环量分布的离心叶轮S2流面设计与优化[J].流体机械,2013,41(3):24-28.
- [12]Fentress WF.A Computer program for calculating the Boundary layer properties along the surface of turbomachinery blades[R].NAS 7-390,1968.
- [13]于跃平,胡继孙,陈启明,等.叶片型线对离心风机气动性能影响试验研究与叶轮流场计算[J].流体机械,2007,35(7)∶25-29.
- [14]Jansen W.A method for calculating the flow in a centrifugal impeller when entropy gradients are present[D].Institution of Mechanical Engineers,Royal Society Conference on Internal Aerodynamics(Turbomachinery)Jul.19.1967:133-146