Experiment on frequency characteristics of multi-electrode plasma synthetic jet actuator
To investigate the repulsion characteristics of the multi-electrode plasma synthetic jet actuator(ME-PSJA),a microsecond pulse power supply was used to drive ME-PSJA,and the multi-pulse operating mode of ME-PSJA was realized.The discharge and flow field characteristics of the actuator under different excitation frequencies were studied by electrical parameter measurement and high-speed schlieren observation.The experimental results indicated that the time required to establish a complete discharge channel of ME-PSJA was less than 2 μs.The real-time response frequency was greater than 1 400 Hz.When the frequency was lower than the saturation frequency,increasing the frequency can effectively improve the time average momentum and diffusion range of the synthetic jet,and enhance the flow control ability of ME-PSJA.However,When the frequency surpassed the saturation frequency,ME-PSJA cannot continuously generate stable jet,leading to a reduction in operation reliability.
multi-electrode plasma synthetic jet actuator(ME-PSJA)excitation frequencydischarge characteristicshigh-speed schlierenflow control
万方数据
维普
