S052036 Effect of airfoil configuration on active separation control by a DBD plasma actuator

Large-eddy simulations of the separated flow over NACA0006, NACA0012 and NACA0015 airfoils, which are controlled by a DBD plasma actuator, are conducted to investigate the effect of airfoil configuration on separation control. In these simulations, position and operation conditions of a DBD plasma actuator, such as the burst frequency, the degree of induced flow, are varied as simulation parameters. It is clarified that the control effects are different from each airfoil even if same numerical parameters are used. Effective position of actuator is near separation point to suppress the separation for all airfoils. The effects of separation control become smaller for cases with larger separation regions, and the separation development significantly influence on the control.