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。
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.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2001年第1期78-81,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目!(No.59836220
59676011)