弯叶片对大展弦比扩压叶栅角区分离控制机理研究(二)——弯叶片对静压场分布的影响

Study on the Corner Separation Controlling Mechanism of the Bowed Blade for a High Aspect Ratio Compressor Cascade Part Ⅱ:The Effects on the Cascade Static Pressure Distribution of the Bowed Blade

以大展弦比扩压叶栅为研究对象,分析了弯叶片中弯高和弯角分别对叶栅静压场分布的影响。通过对比分析展向静压场分布和型面压力分布随弯高和弯角的变化规律,并结合第一部分发现的弯叶片角区分离起始点和吸力面回流区范围随弯高和弯角的变化规律,探讨了弯叶片的角区分离流动控制机理。

In this paper,a high aspect ratio compressor cascade has been studied. The effects on the cascade static pressure distribution of the bowed blade are studied. By way of comparison and analysis of the changing pattern with bowed angle and bowed height of the static pressure spanwise distribution and the distribution along profile combined with the conclusions of the first part that the changing pattern with bowed angle and bowed height of the comer separation start point and the reflect flow boundary on the suction surface the comer separation controlling mechanism of the bowed blade is discussed.