Abstract
Current study investigates effects of a burst frequency (F) and a momentum coefficient (cμ) of a single dielectric barrier discharge(DBD) actuator on control of deep-stall flow over NACA0015 at a chord Reynolds number of 2.6×10 using large-eddy simulations. The DBD actuator is installed at the leading edge that is near the laminar separation point of the uncontrolled case. The DBD actuator-based flow control with the burst modulation effectively suppresses the leading edge separation and improves the aerodynamic performance. Better aerodynamic performance and standard deviation of lift are obtained by the cases of F=6 and 50 compared to the case of F=1 due to the suppression of separation. Although within the range of the momentum coefficient considered the increase in the momentum coefficient seems to enhance the aerodynamic performance, the manipulating frequency of burst actuation (F) is more efficient and realistic for the operation of DBD plasma actuator in practical engineering problems.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
