摘要
为控制泄漏流提高压缩机的稳定工作裕度,采用了叶顶前缘端削与叶顶篦齿组合的设计。对该结构的数值研究表明:前缘端削通过引入高能来流对间隙泄漏流的抑制作用增强,篦齿在一定程度上阻断泄漏流由压力面向吸力面的流动,二者共同作用使压缩机在不同转速下的稳定工作裕度均获得一定提升。
To control leakage flow and improve the stability margin of axial compressor, the combination design of inclined blade tip of leading edge and blade labyrinth tip is adopted. The numerical simulation of the structure shows that the inclined blade tip of leading edge can introduce more high-energy fluid which suppress the leakage flow furtherly, and the blade labyrinth tip stops the leakage flow from pressure surface to suction surface in a certain extent. The unitive action of the two structures is proved to improve the rotor stability margin to certain ascend in different rotating speed.
出处
《风机技术》
2012年第1期23-26,共4页
Chinese Journal of Turbomachinery
关键词
轴流压缩机
数值模拟
前缘端削
叶顶篦齿
稳定裕度
泄漏流
axial compressor
numerical simulation
inclined blade tip of leadingedge
blade labyrinth tip
stability margin
leakage flow
