The large suction capacities of the system are unique. They enable controlling the side wall boundary layer in front of the cascade test section, the upper and lower bypass channels as well as operating the transonic upper end wall.The suction system is also used for controlling the side wall boundary layers within the cascade passage and for suppressing secondary flow.
The great advantages of the analysis of two-dimensional cascades reach from cheap models with relatively large dimensions, easy measurement and optical accessibility, but particularly to the possibility of controlling the aerodynamical and the geometrical parameters independently of each other, which is not possible in real turbomachines.
The test facility is used for the following kind of studies:
Technische Daten:Characteristically parameters:
Flow visualisation system: