Abstract
Dielectric barrier discharge plasma actuators (DBD-PAs) have been developed for active flow control devices. However, it is necessary to reduce ozone produced by DBD toward practical applications using DBD-PAs. In this study, variations of ozone concentration, flow velocity, power consumption were investigated by changing exposed electrodes of DBD-PAs. It was found that span-type DBD-PA shows lower power consumption and higher flow velocity than that of normal-type DBD-PA for V_<p-p> = 4.0 and 6.0 kV. Ozone concentration of span-type DBD-PA higher than normal-type DBD-PA for V_<p-p> = 4.0 and 8.0 kV. In addition, it was confirmed that catalyst located in downstream from the exposed electrode can reduce ozone concentration between 18 and 42%.
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