Investigation on the influence of airflow on atmospheric pressure nanosecond pulse DBD
Atmospheric pressure nanosecond pulse dielectric barrier discharge plasma was produced with a wire-to-wire electrode arrangement at atmospheric pressure,and the effect of airflow on the discharge was studied.The discharge is analyzed and discussed by collecting single period discharge image,voltage current waveform and photocurrent waveform.The results show that the discharges present as stream discharge when the discharge gap spacing is relatively small.The discharges present as surface discharge when the discharge gap is large,and the larger the electrode spacing,the higher the discharge dispersion.The self-organized discharge can be observed in still air,and the distance between discharge channels increases with the increase of gap spacing.The effect of air flow on the uniformity of volume discharge is significant,but it has little effect on the uniformity of surface discharge,and it can increase the intensity of surface discharge.
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