串列叶栅后排静叶周向位置对压气机性能影响的数值研究

NUMERICAL INVESTIGATION ON THE COMPRESSOR PERFORMANCES UNDER DIFFERENT CIRCUMFERENTIAL POSITIONS OF THE REAR BLADES OF TANDEM STATOR

本文采用数值模拟研究串列叶栅后排静叶周向位置对压气机级性能的影响。通过对数值结果的分析给出了串列叶栅在压气机中级的匹配方法及两排静叶周向最佳匹配位置,结合总压损失和壁面流动详细分析了三个典型周向位置对串列叶栅流场的影响。

This paper presents a numerical study on the performances of a compressor stage under different circumferential positions of the rear blades of tandem stator. The matching principle of a stage and the optimum matching position of the front and the rear blades of tandem stator are presented according to the computed results. The aerodynamics of tandem stator is investigated by detailed analyses on total pressure loss and end-wall flow at three typical positions.