计算物理 ›› 2004, Vol. 21 ›› Issue (1): 81-85.

• 研究论文 • 上一篇    下一篇

大气压下自由燃烧弧的温度场和速度场的数值模拟

徐翔, 宫野, 刘金远, 郑殊   

  1. 大连理工大学三束材料改性国家重点实验室, 辽宁 大连 116023
  • 收稿日期:2003-04-25 修回日期:2003-09-08 出版日期:2004-01-25 发布日期:2004-01-25
  • 作者简介:徐翔(1980-),男,山东临沂,硕士生,土要从事等离了体数值模拟的研究.

Numerical Simulation of the Distribution of Temperature and Velocity in a Free-burning Arc

XU Xiang, GONG Ye, LIU Jin-yuan, ZHENG Shun   

  1. State Key Laboratory for Materials Modification by Three Beams, Dalian University of Technology, Dalian 116023,China
  • Received:2003-04-25 Revised:2003-09-08 Online:2004-01-25 Published:2004-01-25

摘要: 采用标准SIMPLE算法,并作了-些修正,给出了具体的计算步骤和流程图,将其应用于磁流体动力学(MHD)方程进行数值求解.得到了轴对称情况下,自由燃烧弧的温度场和速度场的分布,并和实验结果进行了比较.分析了不同辐射模型对温度场的影响,发现辐射导致电弧温度降低,但不同的辐射模型对于电弧的温度影响不大.

关键词: 自由燃烧弧, SIMPLE算法, 数值模拟

Abstract: The SIMPLE algorithm is used to solve the MHD equations and the solutions of MHD equations are presented for the whole free-burning arc, excluding the electrodes. The SIMPLE algorithm has been revised in order to solve MHD equations and the flow chart is showed. A self-consistent numerical solution of the MHD equations yields the temperature and velocity distributions. And different types of radiation term are examined on the numerical results and it is found that the radiation term redults in a small decrease on the temperature of the arc.

Key words: free-burning arc, SIMPLE algorithm, numerical simulation

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