In this study, an atmospheric pressure dielectric barrier discharge-based argon plasma jet has been modeled using COMSOL Multiphysics, which is based on the finite element method. The fluid dynamics and plasma modules of COMSOL Multiphysics code have been used for the modeling of the plasma jet. The plasma parameters, such as electron density, electron temperature, and electrical potential, have been examined by varying the electrical parameters, that is, supply voltage and supply frequency for both cases of static and with the flow of argon gas. The argon gas flow rate was fixed at 1 l/min. Ring electrode arrangement is subjected to a range of supply frequencies (10–25 kHz) and supply voltages (3.5–6 kV). The experimental results of the ring electrode configuration have been compared with the simulation analysis results. These results help in establishing an optimized operating range of the dielectric barrier discharge-based cold plasma jet in the glow discharge regime without arcing phenomenon. For the applied voltage and supply frequency parameters examined in this work, the discharge was found to be consistently homogeneous and displayed the characteristics of atmospheric pressure glow discharge.

在这项研究中，已使用COMSOL Multiphysics基于有限元方法对基于大气压介质阻挡放电的氩等离子体射流进行了建模。COMSOL Multiphysics代码的流体动力学和等离子体模块已用于等离子体射流的建模。通过改变电参数来检查等离子体参数，例如电子密度，电子温度和电势，即在静态和氩气两种情况下的供电电压和供电频率。氩气流量固定为1l /​​ min。环形电极的布置要承受一定范围的电源频率（10–25 kHz）和电源电压（3.5–6 kV）。将环形电极配置的实验结果与模拟分析结果进行了比较。这些结果有助于在辉光放电状态下建立基于电介质阻挡放电的冷等离子体射流的最佳工作范围，而不会产生电弧现象。对于这项工作中检查的施加电压和电源频率参数，发现放电始终是均匀的，并表现出大气压辉光放电的特性。