This paper investigates the external circuit effect in corona discharge by means of numerical simulation, while the effect is usually disregarded in previous plasma simulations. A general numerical solution method of serial external circuit, which can compute surface charges on any shape of electrodes adaptively and solve electrode potential and circuit current simultaneously, is developed to support the investigation, due to lack of theoretical solution in irregular electrode systems. Brief description and validation of the scheme are presented in section 2. In general, the accuracy of numerical solution improves with mesh refinement in orthogonal mesh, due to stair step approximation. Simulations are performed in our self-developed 3D PIC-MCC (particle-in-cell, Monte Carlo collision) code with photoionization and external circuit. The simulation model including recently developed photoionization model is described briefly in section 3. Then the simulation results in a needle-p...

中文翻译：

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带外部电路的针板电极中电晕放电的3D PIC-MCC模拟

本文通过数值模拟的方法研究了电晕放电中的外部电路效应，而在以前的等离子体模拟中通常忽略了该效应。由于不规则电极系统缺乏理论上的解决方案，因此开发了一种通用的串行外部电路数值解法，该方法可以自适应地计算任何形状的电极上的表面电荷，并同时求解电极电势和电路电流，从而为研究提供了支持。该方案的简要说明和验证在第2节中给出。通常，由于阶梯步长近似，数值解的精度随正交网格中的网格细化而提高。仿真是在我们自行开发的3D PIC-MCC（单元内粒子，蒙特卡洛碰撞）代码中进行的，该代码带有光电离和外部电路。