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本文介绍了采用长、短叶片可能扩大跨音速压缩机叶栅工作范围的实验研究.在跨音速环形叶栅风洞中,应用几种测试方法着重研究了出现堵塞和强烈分离的流场及冲波位置,确定了来流角β_1(相应的冲角i_1)随来流马赫数M_1变化的工作范围.实验得出M_1=0.6的工作范围是-10°1.2仅出现唯一冲角的情况.
In this paper, we introduce the experimental research on the possibility of expanding the working range of transonic compressor cascades by using long and short blades.In the wind tunnel with transonic annular cascades, several test methods are applied to study the flow field and impulse The working range of the flow angle β_1 (the corresponding angle of attack i_1) with the flow Mach number M_1 was determined. The experimental results show that the working range of M_1 = 0.6 is -10 ° 1.2.