Two-dimensional kinetic simulation has been carried out to investigate the effects of repetition rate and pulse width of nanosecond\r\nrepetitively pulsed discharges on stabilizing premixed lean methane-air combustion. The repetition rate and pulse width are varied\r\nfrom 10 kHz to 50 kHz and from 9 ns to 2 ns while the total power is kept constant. The lower repetition rates provide larger\r\namounts of radicals such as O, H, and OH. However, the effect on stabilization is found to be the same for all of the tested\r\nrepetition rates. The shorter pulse width is found to favor the production of species in higher electronic states, but the varying\r\neffects on stabilization are also found to be small. Our results indicate that the total deposited power is the critical element that\r\ndetermines the extent of stabilization over this range of discharge properties studied.
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