大气压交流正弦电压辅助脉冲放电过程与特性研究  

Study on the dynamics and characteristics of atmospheric pulsed discharge assisted by AC sinusoidal voltage

作　　者：金源积 郭颖[1,2] 韩乾翰 石建军[1,2] JIN Yuanji;GUO Ying;HAN Qianhan;SHI Jianjun(College of Science,Donghua University,Shanghai 201620,China;Textiles Key Laboratory for Advanced Plasma Technology and Application,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学理学院,上海201620 [2]东华大学纺织行业先进等离子体技术与应用重点实验室,上海201620

出　　处：《东华大学学报（自然科学版）》2023年第3期149-153,共5页Journal of Donghua University(Natural Science)

基　　金：国家自然科学基金(11875104,12075054)

摘　　要：为研究脉冲电压处于交流正弦电压不同相位时对等离子体射流特性和放电过程的影响,利用双电极耦合介质阻挡放电装置产生大气压脉冲放电等离子体射流,通过放电空间分布在脉冲电压阶段的变化,分析放电图像强度的时间演化和等离子体子弹速度的空间分布,证实了等离子体射流是以等离子体子弹形式在放电空间传播的。研究表明,脉冲电压极性与交流正弦电压极性相同或相反都会对等离子体子弹的产生和传播展现出抑制或加强效果。An atmospheric pressure plasma plume generated by pulsed discharge was produced with a dual-electrode coupled dielectric barrier electrode configuration.The characteristics and dynamics of plasma plume were investigated by applying pulse voltage at different phase of AC sinusoidal voltage.The temporal evolution of discharge image intensity and the spatial distribution of plasma bullet velocity were studied.It was demonstrated the plasma plume was a travelling plasma bullet in the discharge regime by the discharge spatial profile within time interval of pulse voltage.The results show that when the polarity of pulse voltage is the same or opposite to that of AC sinusoidal voltage,the generation and propagation of plasma bullet is suppressed or enhanced,respectively.

关 键 词：介质阻挡放电 脉冲放电 等离子体射流 放电时空演化 

分 类 号：O531[理学—等离子体物理]