In this study, an improved streamer discharge model for natural ester is established by considering the effect of temperature on carrier mobility during discharge, the distribution of the ionization energy of the liquid molecules, and the fluctuation source of the carrier density related to the electric field gradient. Based on Poisson's equation and the continuity equation, the simulation models are improved by adding a fluctuation source term to the continuity equation. The source term consists of carrier density related to the electric field gradient during discharge. The effect of the temperature on the carrier mobility is studied experimentally and added to the simulation parameter settings. The results show that the improved model demonstrates similar branch patterns to those observed experimentally during the initiation of the streamer. The degree of fluctuation of carrier density related to the electric field quantifies the branching, pattern, and propagation characteristics of the streamer.

中文翻译：

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脉冲正放电过程中载流子密度波动对天然酯中初始流注支化影响的模拟

本研究综合考虑温度对放电过程中载流子迁移率的影响、液体分子电离能的分布以及与电场相关的载流子密度波动源，建立了一种改进的天然酯流光放电模型。坡度。在泊松方程和连续性方程的基础上，通过在连续性方程中加入波动源项对仿真模型进行了改进。源项包括与放电期间电场梯度相关的载流子密度。通过实验研究温度对载流子迁移率的影响，并将其添加到模拟参数设置中。结果表明，改进的模型显示出与在拖缆启动期间通过实验观察到的分支模式相似的分支模式。