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通过将麦克斯韦方程、纳维-斯托克斯方程及能量平衡方程相结合,提出了一个描述单电极直流电弧炉炉内熔体温度场及流场的数学模型。通过实验室规模的直流电孤炉的温度实测和模型计算表明,熔体内的温度分布是均匀的,电弧附近的一定区域除外;熔体的流动是高度紊流的;操作电流为0.8～1.2kA时,热浮力是控制熔体流动的主导力量。
By combining the Maxwell equation, the Navier-Stokes equation and the energy balance equation, a mathematical model describing the melt temperature field and flow field in a single electrode DC EAF was proposed. The temperature measurement and model calculation of a laboratory-scale DC electric furnace show that the temperature distribution in the melt is uniform except for a certain area near the arc; the melt flow is highly turbulent; the operating current is 0.8-1.2 kA Thermal buoyancy is the dominant force controlling melt flow.