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叶轮机械设计与影响性能及内流的若干重要问题
引用本文:魏兵海,谢军龙,吴克启.叶轮机械设计与影响性能及内流的若干重要问题[J].工程热物理学报,2001,22(2):185-187.
作者姓名:魏兵海  谢军龙  吴克启
作者单位:华中科技大学动力工程系,
摘    要:本文按照假想等价速度三角形的概念及应用平面叶栅资料,给出了叶轮机械准三元设计时S1流面叶片造型的几种不同方法,通过设计例作了比较。同时用数值计算和实验结果,对影响叶轮机机械性能及内流的若干重要问题如叶顶间隙、来流条件(前置进气箱、进口速度畸变、预旋等)进行了讨论。

关 键 词:设计方法  假想等价速度三角形  性能及内流  叶顶间隙  来流条件
文章编号:0253-231X(2001)02-0185-03
修稿时间:2000年12月12

SOME IMPORTANT PROBLEMS ABOUT IMPELLER DESIGN AND THE INFLUENCE INTO INTERNAL FLOW AND PERFORMANCE
WEI Bing-Hai,XIE Jun-long,WU Ke-Qi.SOME IMPORTANT PROBLEMS ABOUT IMPELLER DESIGN AND THE INFLUENCE INTO INTERNAL FLOW AND PERFORMANCE[J].Journal of Engineering Thermophysics,2001,22(2):185-187.
Authors:WEI Bing-Hai  XIE Jun-long  WU Ke-Qi
Abstract:Some methods of blade section design based on virtual-equivalent velocity diagram and plane cascade data on S1 averaged stream surface, which is usually used in quasi-three-dimensional design, is presented and they are compared by design examples. In the other hand, with focus on some important problems such as tip clearance. inlet conditions (inlet box. inlet velocity distortion. prewhirl and so on), the influences of which on performance and internal flow are discussed by numerical simulation and experimental results.
Keywords:design method  virtual-equivalent velocity diagram  performance and internal flow  tip clearance  inlet conditions
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