| 自由燃烧电弧中传热与流动的数值模拟 |
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| 引用本文： | 李和平,陈熙. 自由燃烧电弧中传热与流动的数值模拟[J]. 工程热物理学报, 2001, 22(1): 78-81 |
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| 作者姓名： | 李和平 陈熙 |
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| 作者单位： | 清华大学工程力学系, |
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| 基金项目： | 国家自然科学基金资助项目!（No．59836220；59676011） |
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| 摘 要： | 本文对自由燃烧电弧中传热与流动进行了数值模拟，计算域除包括电弧本身外，还包括阴极与阳极。为了避免等离子体鞘层中复杂的物理过程给模拟所带来的困难，对阴、阳极鞘层分别进行了简化处理。文中讨论了不同形式的能量方程及其离散格式对计算结果的影响。并在求解能量方程时，考虑了电极－等离子体交界面处特殊的传热机理。
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| 关 键 词： | 热等离子体 自由燃烧电弧 数值模拟 |
| 文章编号： | 0253-231X(2001)01-0078-04 |
| 修稿时间： | 2000-03-20 |
MODELING OF THE HEAT TRANSFER AND FLUID FLOW IN A FREE--BURNING ARC |
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| LI He-Ping,CHEN Xi. MODELING OF THE HEAT TRANSFER AND FLUID FLOW IN A FREE--BURNING ARC[J]. Journal of Engineering Thermophysics, 2001, 22(1): 78-81 |
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| Authors: | LI He-Ping CHEN Xi |
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| Abstract: | Modeling results concerning a free-burning argon arc are presented in this paper. The calculation domain includes the arc itself and the electrodes. Temperature- dependent plasma properties at LTE state are employed for the arc region, while the electrode sheaths are treated with a simplified method. The effects of using different types of energy equation and its discretization schemes on the numerical results are examined. Special treatments at the plasma-electrode interfaces are also adopted in the modeling. |
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| Keywords: | thermal plasmas free-burning arc modeling |
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