To reveal the influence of actuation power parameters on the reduced electric field and plasma species concentration using high-frequency AC SDBD actuators

firstly

the distribution of reduced electric field is simulated based on its governing equations and boundary conditions. Then

the plasma kinetic model is adopted to perform the numerical simulation of time revolution process in plasma particles with various parameters of electric field. The results show that the high reduced electric field is mainly located between exposed electrode and grounded electrode

and then rapidly attenuates as moving toward outside. As the actuation peak voltage increases

the reduced electric field at the same point will increase linearly

and it varies periodically with a short delaying time under AC actuation mode where the actuation frequency strongly affects its amplitude. Meanwhile

compared with the actuation frequency

the actuation voltage has much stronger effects on plasma species concentration. Specifically

with the variation of actuation frequency and the constant of reduced electric field

the O atom concentration increases slowly

and the increasement of 3.7% is obtained in the range of 1～30 kHz. When the influence of reduced electric field is taken into consideration

the O atom shows a significant inverted U-shaped trend with the highest concentration at 7 kHz

which is 14.2% higher than that at 1 kHz.