采用离散涡方法数值仿真了不同来流攻角下，固定与动边界叶栅绕流。在设计工况时流动接近定常流动。
The unsteady flow past stationary and oscillating cascade for off-design performance respectively are simulated numerically with the Discrete Vortex Method.
其蜗形部分不采用速度矩为常数的假设，固定导叶的形状沿圆周是变化的，以便与来流相适应；固定导叶与活动导叶两环列叶栅之间的相对位置是由优化计算确定的。
The hypothesis of constant velocity moment was not used for the spiral parts design, and the shapes of stay vanes are different along the circumference so that they can adapt their...
其蜗形部分不采用速度矩为常数的假设，固定导叶的形状沿圆周是变化的，以便与来流相适应；固定导叶与活动导叶两环列叶栅之间的相对位置是由优化计算确定的。
The hypothesis of constant velocity moment was not used for the spiral parts design, and the shapes of stay vanes are different along the circumference so that they can adapt their...
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