annular cascade造句

• In this dissertation , a hybrid optimization approach for automatic design of 3d turbine blades was proposed and well implemented . the applications to the stacking design optimization and full 3d aerodynamic design optimization for an annular cascade demonstrated the validity , robustness and efficiency of this hybrid approach
  本论文提出和实现了一种适用于叶轮机械全三维气动优化设计的方法，并利用该方法对某低展弦比、大折转角的环形叶栅分别进行了基迭优化和全三维气动优化。
• For simulating the radial static pressure gradient behind the true turbine guide cascade in low speed wind tunnel with annular cascade , the backboards were placed in the downstream field of the guide model cascade of the low - pressure stage of a turbine , and the effects of the types and positions of the backboards on the outlet flow field of the model cascade were experimentally researched
  为在环形叶栅低速风洞实验中模拟实际涡轮级静叶后径向压力梯度，在某型涡轮低压级静叶的下游流场设置了挡板，实验研究了挡板形式及设置位置对静叶出口流场的影响。