直流电弧炉精炼期内熔池流场和温度场的数值模拟  

Numerical Simulation of Flow Fields and Temperature Fields of Molten Bath in the Refining Stage of DC Electric Are Furnace

作　　者：王丰华[1] 金之俭[1] 朱子述[1] 

机构地区：[1]上海交通大学电气工程系,上海200030

出　　处：《工业加热》2005年第5期4-9,共6页Industrial Heating

摘　　要：数值模拟直流电弧炉精炼期内熔池部分的流体流动和电磁现象有重要的理论意义和实用价值。在对直流电弧炉内电弧等离子体进行数值模拟的基础上,使用一个二维时变磁流体力学模型来描述电弧炉精炼期内熔池部分电磁场、速度场和温度场的分布情况,同时,研究了炉底电极大小对炉内熔池部分流场的影响。仿真结果可为直流电弧炉的合理化设计和冶炼过程的优化提供参考依据。It is important to simulate numerically the flow fields distribution and electromagnetic phenomenon of molten bath in the refiningstage of DC electric arc furnace, which would provide some practical values. In the paper, a two-dimensional time-dependent magneto-hy-dynamics model has been developed to describe the electromagnetic, velocity and temperature profiles of molten bath based on the results ofnumerical simulation of arc plasma in the refining stage of DC electric arc furnace. Meanwhile, the effects of changing the diameter ofbottom electrode to the flow field are presented. The simulation results can be applied to provide a reference for the design of DC electric arcfurnace and the optimization of refining process.

关 键 词：直流电弧炉 数值模拟 温度场 流场 

分 类 号：TM924.4[电气工程—电力电子与电力传动] Q242.1[生物学—细胞生物学]