Investigation of the Effect of DBD Plasma Actuator Location on Flow Control on Cascade of Axial Compressor

In the past decade, flow separation control on the compressor cascade surface has been of interest for scientists to increase efficiency and total pressure loss reduction. One method of active flow control is using a Dielectric Barrier Discharge (DBD) plasma actuator. In this research, DBD plasma actuator on flow separation control was stimulated on the blade surface and the of axial compressor cascade. Navier-Stokes equations are considered steady compressible and three-dimensional. The kw SST Turbulent model is used to simulate the turbulent flow. After validating the simulation results, effect of plasma actuators in three positions were investigated for application of the plasma actuator on the end wall, the suction surface of the blade or simultaneously at both locations at variable inflow angles. The results show that the use of plasma actuator on the end wall has a greater effect on decreasing the total pressure loss comparing suction surface. Also, plasma actuator on the suction surface proved to be more effective for corner separation than the two other types, at positive inflow angles as well as the design point.