透平平面叶栅低速吹风试验若干结果的系统分析

›› 1963, Vol. 11 ›› Issue (2): 36-57.

透平平面叶栅低速吹风试验若干结果的系统分析

强国芳

发布日期:1963-03-01

SYSTEMATIC ANALYSIS OF SOME RESULTS OBTAINED FROM AERODYNAMIC TESTING ON TWO-DIMENSIONAL TURBINE CASCADES AT LOW-SPEEDS

Chang Kuofan

Published:1963-03-01

摘要/Abstract

摘要： 在本文中，作者对透平平面叶栅低速吹风试验的若干结果进行了系统的分析和比较。文中讨论了透平平面叶栅的设计特征（气流转向角ε，叶栅反动度R）几何参数（相对节距t/b，按装角βy，相对前缘半径r1/b，叶型最大相对厚度d/b……等）及工况参数（冲角τ……等）对其主要空气动力特性（损失系数ζ和出气角β2）的影响，在物理过程方面作了说明并与现有文献中有关的资料进行了比较。在此基础上，证实或得出了若干规律性的关系或具体数据。同时，也为透平叶栅叶型的初步设计及其特性的近似估算提供了若干具体的原则和数据，对于透平平面叶栅设计分析和试验研究方面的有关问题也提出了一些看法。

Abstract: In this paper the author deals with some turbine-cascade testing results received fronlow-speed two-dimensional cascade experimental research. The following problems are being investigated:1) The influence of air-stream turning angle or cascade reaction, profile geometric, cascade geometric and aerodynamic parameters on turbine-cascade profile loss coefficients; 2) The effects of above mentioned factors on exit angles of air-stream from cascades. Some comparison of experimental and calculated results is also given and some simple relations or approximate coefficients, which are useful for practical calculation of turbine stage performance, are obtained.Based on these results, the author breifly described some important principles about empirical design of low-speed turbine-cascade of profiles.

强国芳. 透平平面叶栅低速吹风试验若干结果的系统分析[J]. , 1963, 11(2): 36-57.

Chang Kuofan. SYSTEMATIC ANALYSIS OF SOME RESULTS OBTAINED FROM AERODYNAMIC TESTING ON TWO-DIMENSIONAL TURBINE CASCADES AT LOW-SPEEDS[J]. , 1963, 11(2): 36-57.