This study focuses on a magnetically stabilized gliding arc (MGA) plasma. Two fully coupled flow-plasma models (in 3D and 2D) are presented. The 3D model is applied to compare the arc dynamics of the MGA with a traditional gas-driven gliding arc. The 2D model is used for a detailed parametric study on the effect of the external magnetic field. The results show that the relative velocity between the plasma and feed gas is generated due to the Lorentz force, which can increase the plasma-treated gas fraction. The magnetic field also helps to decrease the gas temperature by enhancing heat transfer and to increase the electron number density. This work shows the potential of an external magnetic field to control the gliding arc behavior, for enhanced gas conversion at low gas flow rates.

中文翻译：

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氩气和二氧化碳中磁稳定滑弧等离子体的多维建模

这项研究的重点是磁稳定滑翔弧 (MGA) 等离子体。展示了两个完全耦合的流动等离子体模型（3D 和 2D）。应用 3D 模型将 MGA 的电弧动力学与传统的气体驱动滑行电弧进行比较。二维模型用于对外部磁场的影响进行详细的参数研究。结果表明，等离子体和原料气之间的相对速度是由洛伦兹力产生的，这可以增加等离子体处理气体的分数。磁场还有助于通过增强热传递和增加电子数密度来降低气体温度。这项工作显示了外部磁场控制滑弧行为的潜力，以提高低气体流速下的气体转化率。