Hysteresis characteristics of the initiating and extinguishing boundaries in a nanosecond pulsed DBD
Hysteresis characteristics of the initiating and extinguishing boundaries in a nanosecond pulsed DBD
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纳秒脉冲 DBD 起始和熄灭边界的滞后特性
DOI：
10.1088/2058-6272/aafbdb
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发表时间：
2019-01
影响因子：
1.7
通讯作者：
Chaohai Zhang
中科院分区：
文献类型：
--
作者：
Jingfeng Tang;Miao Tang;Desheng Zhou;Putong Kang;Ximing Zhu;Chaohai Zhang
介质阻挡放电（DBD）目前在等离子体医学、表面改性、臭氧合成等领域有着广泛的应用，而气流对DBD的影响是一个被广泛研究的课题。在这项工作中，滞后特性的启动和熄灭的边界上观察到纳秒脉冲DBD，这是敏感的气流速度和脉冲重复频率（PRF）的变化。研究发现，在一定的气流速度下，点火脉冲重复频率高于熄灭脉冲重复频率。启动脉冲重复频率和熄灭脉冲重复频率之间的这种差异导致在启动和熄灭边界上的滞后现象。当气流速度增加时，点火脉冲重复频率和熄灭脉冲重复频率都增加，并且点火脉冲重复频率和熄灭脉冲重复频率之间的差也增加。启动和熄灭边界之间的滞后宽度被增强。为了解释这些结果，与种子粒子和放电通道的形成机制所涉及的物理过程进行了讨论。
The dielectric barrier discharge (DBD) is presently used in many fields, including plasma medicine, surface modification, and ozone synthesis; the influence of airflow on the DBD is a widely investigated topic. In this work, a hysteresis characteristic on the initiating and extinguishing boundaries is observed in a nanosecond pulsed DBD, which is sensitive to the variation in the airflow velocities and pulse repetition frequencies (PRFs). It is found that, at a certain airflow velocity, the initiating PRF is higher than the extinguishing PRF. This difference between the initiating PRF and the extinguishing PRF leads to a hysteresis phenomenon on the initiating and extinguishing boundaries. When the airflow velocity is increased, both the initiating and extinguishing PRFs are increased and the difference between the initiating PRF and the extinguishing PRF also increased. The hysteresis width between the initiating and extinguishing boundaries is enhanced. To explain these results, the physical processes involved with the seed particles and the mechanisms of forming discharge channels are discussed.
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作者：
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影响因子：
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作者：
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作者：
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作者：
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