In order to investigate the influences of the rising edge

decaying edge and pulse width of nanosecond pulse voltage

and the covered electrode width on the surface dielectric barrier discharge characteristics

adopting the discharge images

voltage-current waveforms

and high speed schlieren

we comprehensively analyzed the effects of each electrical parameter on the discharge morphology

energy consumption and flow field characteristics of the nanosecond pulse surface dielectric barrier discharge. Experimental results reveal that the uniformity of the discharge filament is affected by rising and decaying edge of pulsed voltage. The length of discharge filament is affected by the pulse width

while is also restricted by the width of the buried electrode. The nanosecond pulsed actuation can generate series of shock waves

can also induce the weak jet stream with small velocity

and the direction of the jet is affected by the electrical parameters. Therefore

nanosecond pulsed actuation can not only can play a role in a fast heating

but also has an effect of volume force.