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中文摘要：
表面介质阻挡放电（DBD）在气体流动控制方面有着巨大的应用前景.利用自制的纳秒和微秒脉冲电源进行表面DBD实验,比较了电压幅值、介质厚度、电极水平间距等对两种激励下表面DBD电特性的影响并进行了分析.实验中两种电源激励的表面介质阻挡放电能量均在mJ量级,上升沿瞬时最大功率达到几十kW.实验结果表明：在脉冲上升沿有多次放电,微秒脉冲上升沿放电次数比纳秒脉冲多;随着电压幅值上升,放电次数减少;介质越薄,放电越激烈,能量越大;电极水平间距对表面DBD放电有影响,间距0mm时能量消耗最大;施加脉冲电压频率越大,放电等离子体的亮度越大;微秒脉冲放电的等离子体区域要大于纳秒脉冲放电.
英文摘要：
Surface dielectric barrier discharge （DBD） is a promising technology in applications of flow control. We con-ducted surface DBD experiments using a homemade nanosecond-pulse source and a homemade microsecond-pulse source,and compared the characteristics of the surface DBDs driven by the two sources as well as the influences of the amplitudeof the applied voltage, the thickness of dielectric barrier, and the spacing of electrodes. The experimental results revealthat the surface DBDs driven by the two power sources all have energy at the level of m J, and the maximum power at therising edge up to tens of kW. There are multiple discharges at the rising edge. The number of these discharges is larger inmicrosecond-pulse discharges than in nanosecond-pulse discharges; meanwhile, it decreases with the rising applied vol-tage. The thinner the dielectric barrier is, the stronger the discharge is, and the higher the discharge energy is. The spacingbetween electrodes affects the discharge, and the energy at the gap with spacing of 0 mm is the highest. The dischargeplasma gets brighter when the frequency of applied voltage pulses increases. The area of microsecond-pulse plasma islarger than that of nanosecond-pulse plasma.
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