基于多相流的高炉仿真模型研究

利用CFD(computational fluid dynamics)技术建立炼铁高炉内部二维数学模型，模拟了多相态在高炉中的运动及热传递情况。模型中包括气、液、颗粒和粉相态，对高炉中存在的主要化学反应做了简化处理。模型充分考虑了各相态之间的耦合作用，体现它们之间相互关系。能够预测当一种相态的参数变化时，其它各相所会产生的相应状态变化。通过计算可得到各个相态的稳态速度、温度等结果，尤其软熔带、回旋区等关键区域的仿真情况对高炉操作非常重要，为高炉的系统仿真和高效运行提供了有力工具。

Numerical Simulation Research of Multiphase Fluid in Blast Furnace

A two dimensional mathematical model of ironmaking blast furnace (BF) was built by using CFD technology. The multiphase fluid, motion and heat transfer in BF were simulated. Phase of gas, liquid, particle and fine were included in this model, as well as simple chemical reaction. The model considered the coupled relationships of phases, so every phase can change as the changes of other phase characters. The steady velocity and temperature of per-phase can be described by numerical calculation, especially the simulation results of cohesive zone and raceway which were very important for BF. The theory and model built provided a helpful try for BF simulation, and new method for guidance on BF operation.