The results show that, the boundary layer suction could reduce the cascade s total pressure losses, decrease the deviation angles and improve the aerodynamics performance of cascade.
结果表明，附面层吸除能促进附面层减薄，减少分离损失，有助于降低叶栅总压损失，提高气流折转能力，改善叶栅气动性能。
Using the Dual-Time Stepping Method with Moving-Grid technique to solve the Navier-Stokes equations, the numerical analysis of the unsteady aerodynamics on vibrating cascade is performed.
利用双时间方法结合运动网格求解Navier -Stokes方程，完成了振动叶栅非定常气动力的数值分析。
Based on the theories of aerodynamics and inertial impaction, the working principles of cascade impactors have been discussed.
介绍了空气动力学的一些基本性质和惯性碰撞的原理，在此基础上讨论了多级冲击采样器的工作原理。
Because the compressor should realize to get higher pressure ratio with less stage, so, in order to manufacturing a compressor with high loads and high properties of cascade plays an important role to improve the properties of compressor aerodynamics.
由于压气机要实现以更少的级数达到更高的压比，因此研制高负荷、高性能叶栅对提高压气机气动性能起着至关重要的作用。
The structural dynamic equations for blades were introduced in this paper. Through numerical solving the aerodynamics-structure coupled equations, a 2-D unsteady viscous flow in cascade was investigated under gas-solid coupled conditions, and a preliminary analysis of the cascade flutter was prosecuted.
引入叶片结构动力学方程，通过数值求解气动/结构耦合方程体系，研究了气固耦合条件下叶栅内的二维非定常粘性流动，并初步进行了叶栅的颤振分析。