Negative corona computation in air
Negative corona computation in air
复制标题
空气中的负电晕计算
DOI：
10.1007/s00366-006-0019-9
复制
发表时间：
2006
影响因子：
1.6
通讯作者：
Y. Zebboudj
中科院分区：
文献类型：
--
作者：
N. Oussalah;Y. Zebboudj
本文研究了线-面几何结构中的负电晕放电。泊松方程的求解采用有限元法和电流连续性方程，其中更新的空间电荷密度的求解采用简化的特征线法，它忽略了离子扩散。所使用的数值模型考虑了电离区域。我们建议直接在有限元公式中引入一个对应于临界最小电离场的势作为Dirichlet条件。计算结果与实验数据吻合良好，计算的起始电压误差可以忽略不计。数值计算进行比较，使用线性偏置探头获得的实验数据。
This paper deals with negative corona discharge in wire-to-plane geometry. Poisson’s equation is solved using the finite element method and the current continuity equation which updates the space charge density is solved using the simplified method of characteristics, which neglects ion diffusion. The used numerical model takes into account the ionization region. We proposed the introduction of a potential corresponding to the critical minimum ionization field directly in the finite element formulation as a Dirichlet condition. The computed data are in good agreement with experimental data with negligible error in the computed onset voltage. The numerical computations are compared to experimental data obtained using a linear biased probe.