真空循环精炼过程中钢液流动的数学模拟:流动的数学模型  

Mathematical Modeling of Molten Steel Flow in a Whole RH Degasser during the Vacuum Circulation Refining Process:Mathematical Model of the Flow

作　　者：魏季和[1] 胡汉涛[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《过程工程学报》2006年第z1期62-65,共4页The Chinese Journal of Process Engineering

基　　金：国家自然科学基金资助项目(编号:50074022)

摘　　要：考虑到RH过程的物理特性,特别是上升管内气液两相流的行为和两相间的动量传输,建立了该精炼过程中整个装置内钢液流动的三维数学模型.在该模型中,将钢包,插入管和真空室视为一个整体,基于双流体模型处理和描述了气液两相流,并采用了特殊修正的k-ε双方程模型.给出了该模型的有关细节.A three-dimension mathematical model for the flow of the molten steel in the whole unit during the RH refining process has been proposed and developed with considering the physical characteristics of the process,particularly the behaviors of gas–liquid two phase flow in the up-snorkel and the momentum exchange between the two phases.The ladle,snorkels and vacuum vessel have been regarded as a whole in the model,and the gas–liquid two-phase flow has been treated and described on the basis of the two-fluid model and using the especially modified two-equation k–ε model.The details of the model have been presented.

关 键 词：RH精炼过程 钢液的流动 气液两相流 含气率 循环流量 气液双流体模型 数学模拟 

分 类 号：TF769[冶金工程—钢铁冶金]