涡流发生器和附面层抽吸相结合对于低速压气机叶栅性能的影响

In the current study, the effects of combination between micro-vortex generator (MVG) and boundary layer suction (BLS) on a high-lode compressor cascade are explored. Five cases are grouped by a kind of micro-vortex generator and suction slot. The MVG are mounted on the end-wall in front of the passage, and the BLS are all applied on the suction side of the blade near the trailing edge. The calculated results show that: at design incidence, the method of combined MVG and BLS (COM) can make the total pressure loss decrease notably as well as the static pressure coefficient increase, which is more superior than MVG but not as good as BLS. At stall incidence, the main flow and low-energy flow between the suction side and end-wall are mixed by induce vortices coming from MVG, and the total pressure loss decrease by 11.54%. At a case with 1.5% suction mass flow ratio, the total pressure loss decreases by 14.59% when the COM control method is applied.