Abstract
This study is concerned with the flow around a circular cylinder that a Dielectric Barrier Discharge (DBD) plasma actuator is located at the cylinder surface. Flow visualization and the base pressure measurement were carried out for the case that the plasma is on and off controlled (pulse modulated drive). As a result, the wake expansion and the length of cavity region are significantly changed. The base pressure decreases when the actuator is driven at a frequency of St=0.4, and it increases at St=1.
