摘要
对某多级高亚音轴流压气机的第七级原型级和弯掠动叶改型级进行了非定常数值模拟,数值研究结果表明:流动的非定常性对动叶尾缘和下游静叶前缘位置处的气动参数影响较为强烈,其中对静叶的影响要比对动叶的影响大。弯掠动叶减轻了非定常效应对动叶根部和顶部的影响,同时也减小了对下游静叶气动参数的非定常扰动。
The unsteady numerical simulation is carried out on the original stage and the curved-sweep rotor stage of the seventh stage of one multistage compressor. The numerical results show that The unsteady flow has strongly influenced on the aerodynamic parameters of the trailing edge of rotor and the leading edge of the downstream stator, and exerts more influence on the stator than on the rotor. The skewing and sweeping of the rotor reduce the unsteady effect of the tip and hub of the rotor,and also decrease the unsteady disturbance to the aerodynamic parameters of downstream stator.
出处
《汽轮机技术》
北大核心
2011年第1期47-49,55,共4页
Turbine Technology
关键词
前掠
正弯
静压系数
非定常流动
forward swept
positive curved
static pressure coefficient
unsteady flow
