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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Comparison between a two- and a three-dimensional arc plasma configuration
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Comparison between a two- and a three-dimensional arc plasma configuration

机译：二维和三维电弧等离子体配置的比较

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A three-dimensional (3D) argon are plasma at atmospheric pressure is presented. The model is developed using the commercial code Fluent. Two are plasma configurations are studied: a free burning are and a transferred are. In the free burning are configuration, the 3D results are compared with a two-dimensional (2D) configuration. The natural axis of symmetry of the system, given by the physical operating conditions and by the cathode tip geometry, leads to a good agreement between the 2D and 3D results. The model is validated by comparisons with experimental and theoretical temperature fields. The results show a small difference between the 2D and 3D models, as does the other literature. In the transferred are configuration model the injection is given by three injectors. A rigorous modelling of the injection cannot be treated using a symmetric plane or a symmetric axis, so the results are presented in a real 3D configuration and compared with results obtained in a 2D configuration. Indeed, in a 2D configuration, due to the symmetrical condition on the axis, the main assumption consists of representation of the real injection geometry by an equivalent surface injection. The imposed mass how rate is then distributed along a ring and differences can appear in the results. [References: 35]
机译：提出了在大气压下的三维（3D）氩气等离子体。该模型是使用商业代码Fluent开发的。研究了两个等离子体配置：自由燃烧场和转移场。在自由刻录配置中，将3D结果与二维（2D）配置进行比较。系统的自然对称轴（由物理操作条件和阴极尖端几何形状决定）导致2D和3D结果之间的良好一致性。通过与实验和理论温度场的比较来验证该模型。结果显示2D模型和3D模型之间的差异很小，其他文献也是如此。在转移的配置模型中，喷射由三个喷射器给出。无法使用对称平面或对称轴对注射进行严格的建模，因此结果以真实的3D配置显示，并与2D配置获得的结果进行比较。实际上，在2D配置中，由于轴上的对称条件，主要假设包括通过等效表面注射来表示实际注射几何形状。然后，所施加的质量如何沿环分配速率，结果中可能会出现差异。 [参考：35]

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