A new measure to reduce the secondary flow loss of the stator cascade of steam turbine governing stage by means of the boundary, layer suction near the suction side of endwall is presented.

• 提出一种在调节级静叶栅叶片吸力面侧端壁处抽吸低能流体至轴封漏汽腔室，以降低静叶栅二次流损失的方法。