摘要
根据半固态镁合金连续铸轧工艺过程的特点,建立了二维不可压缩非牛顿流体流动与传热的耦合计算模型,并使用流体分析软件FLOW3D对连续性方程、纳维-斯托克斯方程及能量方程进行稳态求解。考虑到辊间半固态金属浆料流动特点及双辊的布置方式有利于保持熔池内的层流流动,选取层流模型来进行描述。最终获得了连续铸轧工艺过程的流场、温度场和固相体积分数的分布以及入口浆料温度、铸轧速度等工艺参数对铸轧过程的影响规律。模拟结果可以很好地对工艺参数进行优化,从而为半固态镁合金的连续铸轧工业化生产奠定基础。
In this paper, a two-dimensional incompressible non Newtonian fluid flow and heat transfer model based on the continuous casting process of seml-solid Magnesium alloy has been developed, which is described by the continuity equation, the Navier-Stokes equation and the energy equation. These equations are solved by the CFD code FLOW3D for a steady-state solution. Finally, the distribution of the flow field, temperature and solid fraction in continuous casting process are obtained. Furthermore, the effects of technical parameters such as inlet temperature, rolling velocity on the process are also obtained. The numerical results will optimize the technical parameters and thus give the effective guidelines for the industrialization of continuous casting of semi-solid Magnesium alloy.
出处
《塑性工程学报》
EI
CAS
CSCD
北大核心
2007年第1期80-84,共5页
Journal of Plasticity Engineering
基金
国家自然科学基金资助项目(50374014
50674017)
关键词
半固态
镁合金
连续铸轧
FLOW3D
数值模拟
semi-solid
Magnesium alloy
continuous casting
FLOW3D
numerical simulation
