Numerical study on influences of barrier arrangements on dielectric barrier discharge characteristics
Numerical study on influences of barrier arrangements on dielectric barrier discharge characteristics
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DOI：
10.1109/tps.2003.815469
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发表时间：
2003-08-01
影响因子：
1.5
通讯作者：
Hong, SH
中科院分区：
文献类型：
--
作者：
Kang, WS;Park, JM;Hong, SH
通过数值模拟研究了介质阻挡放电中阻挡层排列方式对放电特性的影响。一个1.5维（1.5-D）的建模被认为是在裸，单势垒，双势垒电极的安排，而一个二维（2-D）的方法是采用在铁电填充放电（FPD）的配置。数值模拟结果表明，介质阻挡放电中微放电的演化依次发生在雪崩、流注和衰减三个不同的阶段，介质阻挡层使流注放电在较低的电场中稳定和持续，而不会转变为火花放电。特别是，在FPD中似乎形成了由颗粒产生的高度不均匀的强电场效应，这使得能够期望烟气净化以提高分解效率。
A numerical study has been carried out to understand the influences of barrier arrangements on the discharge characteristics of dielectric barrier discharge (DBD). A 1.5-dimensional (1.5-D) modeling is considered in the arrangements of bare, single-barrier, and double barrier electrodes while a two-dimensional (2-D) approach is employed in a configuration of ferroelectric packed discharge (FPD). Numerical simulations show that the evolution of microdischarges in DBD occurs sequentially in the three distinctive phases of avalanche, streamer, and decay, and that the dielectric barriers make streamer discharges stabilized and sustained in lowered electric fields without transition to spark compared with no barrier case. Especially, the highly nonuniform strong electric field effect created by the pellets appears to be formed in FPD, which enables the flue gas cleaning to be expected to enhance the decomposition efficiency.