Abstract
An annular dielectric barrier discharge (DBD) plasma actuator has potential flow control applications due to having a simple design, no moving parts, and being light weight and fully electronic with low power consumption. We have experimentally investigated the detailed near-wall flow characteristics generated by the annular DBD plasma actuator. The actuator generates a wall-normal jet on top of a recirculation zone, with characteristics dependent on the actuation parameter i.e., burst frequency and amplitude. Our results can provide guidance for design and process optimization of several flow control applications i.e. lift enhancement, drag reduction, and mixing enhancement etc.
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