自然对流条件下Si-Fe在铁液中熔化过程的数值模拟  

NUMERICAL SIMULATION ON MELTING PROCESS OF FERROSILICON IN LIQUID IRON UNDER NATURAL CONVECTION

作　　者：曾大新[1] 刘伟涛[1] 苏俊义[1] 陈勉己[2] 

机构地区：[1]西安交通大学机械工程学院,西安710049 [2]东风汽车公司,十堰442000

出　　处：《金属学报》2000年第7期739-743,共5页Acta Metallurgica Sinica

摘　　要：建立了描述自然对流条件下Ｓｉ－Ｆｅ在铁液中熔化过程的数学模型，固相、液相和糊状区中的动量、热量和溶质传输用统一方程描述，用控制容积差分法耦合求解质量、动量、能量和溶质守恒方程，计算结果与实验结果基本一致．计算结果还显示，Ｓｉ－Ｆｅ浸入铁液至完全熔化分为两个时期，即铁壳期和熔化期。A mathematical model was developed to simulate melting processes of ferrosilicon in liquid iron under natural convection. Continuum formulations are used to describe momentum, heat and solute transport in the liquid, mushy and solid regions which are changed during melting processes of ferrosilicon. Coupled calculations of flow velocity, temperature and solute concentration fields are carried out by using controlled-volume finite difference method. The obtained results are coincident with experimental ones basically. The computed results also show that two separate periods, which are the iron shell period and melting period, exist after immersing ferrosilicon in liquid iron.

关 键 词：硅铁 熔化 自然对流 数据模拟 

分 类 号：TF645[冶金工程—钢铁冶金]