摘要
应用热力学与流体动力学理论,通过COMSOL Multiphysics多物理场有限元软件对AZ91镁合金半连续铸造过程进行了热流耦合模拟。采用四阶隐式龙格-库塔时间步长法和自适应网格技术提高模型数值求解的收敛性。通过模型化与数值计算实现了对镁合金半连续铸造工艺的定量描述,分析了铸造速度对镁合金半连续铸造过程的影响。
Appling thermodynamics and fluid dynamics theory, the thermo-flow coupling simulation of AZ91 magnesium alloy semi-continuous casting process was carried out by using COMSOL Multiphysics multi-physical field finite element software. The convergence of the numerical solution of the model was improved by using the four order implicit Runge-Kutta time step length method and adaptive grid technology. The quantitative description of the magnesium alloy semi-continuous casting process was realized by modeling and numerical calculation. The effects of the casting speed in the semi-continuous casting process of the magnesium alloy were analyzed.
出处
《热加工工艺》
CSCD
北大核心
2015年第13期94-97,101,共5页
Hot Working Technology
基金
陕西省教育科学"十二五"规划项目(SGH13487)
关键词
计算机模拟
镁合金
半连续铸造
多物理场耦合
computer simulation
magnesium alloy
semi-continuous casting
multi-physical field coupling