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大量的研究表明,旋转失速现象的发生不仅与压气机工作状态的气动参数有关,而且与压气机几何参数有直接关系。本文的目的是用实验的方法找出影响压气机旋转失速发生的主要因素,通过对实验数据分析研究获得判别失速发生的准则。文中首先对十个低速转子进行试验,其主要几何参数为稠度τ=1.5,轮毂比为0.815,安装角γ分別为45°和60°,弯角θ分别为0°,15°,34°,45°,60°。试验表明:具有各种不同几何参数(弯
A large number of studies have shown that the occurrence of spin-stall phenomenon is not only related to the aerodynamic parameters of the compressor working conditions, but also directly related to the compressor geometry parameters. The purpose of this paper is to find out the main factors affecting the rotation stall of the compressor experimentally and obtain the criterion to judge the occurrence of stall by analyzing the experimental data. Ten low-speed rotors were tested in this paper. The main geometric parameters were consistencies of τ = 1.5, hub ratio of 0.815, mounting angles γ of 45 ° and 60 °, respectively. The bending angles θ were 0 °, 15 °, 34 °, 45 °, 60 °. Experiments show that: with a variety of different geometric parameters (Bend