Investigation on Application of Dihedral/Swept Blade and Boundary Layer Suction to Control Vortex Configurations in Compressor Cascades;

The accurate prediction of drag is key to the design of the low Reynold′s number flight vehicle,and the accurate prediction of friction drag which is induced by separation and transition of the boundary layer is key to the accurate prediction of drag.

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.