弯掠动叶对压气机非定常性能影响的数值研究  

Unsteady Numerical Study on the Compressor Aerodynamics Performance of Curved-sweep Rotor Blade

作　　者：姚宏伟[1] 顾忠华[1] 韩万金[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《汽轮机技术》2010年第6期457-459,共3页Turbine Technology

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,研究非定常条件对两种压气机级总性能参数的影响,数值研究结果表明:非定常条件下,弯掠动叶级的绝热效率在每一瞬时都高于原型级,弯掠动叶级效率的非定常波动范围和幅值较原型级都有所降低,并且其非定常波动的相位发生了改变。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. ,and the influence of the unsteady condition on the two compressor stage total performance is stuided. The numerical results show,under usteady condition, the unsteady adibitic efficiency of the stage with curved-sweep rotor is higher than the original stage at every instantaneous, and the unsteady fluctuation amplitude of the efficiency is evidently reduced and the phase is also shifted.

关 键 词：轴流压气机 前掠 正弯 效率 非定常流动 

分 类 号：TK474.8[动力工程及工程热物理—动力机械及工程]