钢液中夹杂物动力学行为的数学模型  

Mathematical Models on Inclusion Dynamics Behavior in the Molten Steel

作　　者：雷洪[1] 赫冀成[1] 

机构地区：[1]东北大学材料电磁过程研究教育部重点实验室,辽宁沈阳110004

出　　处：《过程工程学报》2010年第S1期288-292,共5页The Chinese Journal of Process Engineering

基　　金：国家高技术研究发展计划资助项目(编号:2009AA03Z530);国家自然科学基金;上海宝钢集团公司联合资助项目(编号:50834010);教育部科学技术研究重点资助项目(编号:108036);高等学校学科创新引智计划资助项目(编号:B07015);中国博士后基金资助项目(编号:20070421065);教育部留学回国人员科研启动基金资助项目(编号:20071108-2);辽宁省自然科学基金资助项目(编号:20072033)

摘　　要：作为衡量钢产品质量的指标,冶金反应器内夹杂物大小、数量,形态和分布越来越受到冶金工作者关注.作为研究钢液中夹杂物行为的重要手段,数值模拟方法被广泛地应用于冶金工艺的优化.本文综合论述了夹杂物行为数值模拟的研究现状,分析了钢中夹杂物的基本数学模型和多模式数学模型优点和不足,并提出了未来的发展趋势和重点要解决的问题.数值模拟结果表明,受钢液运动的影响,夹杂物体积浓度和特征半径在连铸结晶器下方呈"W"形分布.The number,size,morphology and spatial distribution are the key factors to estimate the quality of steel product,so many metallurgists pay more attention on inclusion behaviors in metallurgical reactors.And the numerical simulation technology,one of the effective methods to investigate the inclusion behaviors in the molten steel,is widely used to optimize the metallurgical process.The latest development of numerical simulation for inclusion behaviors involves the basic mathematical models and the multi-module mathematical models.According to the advantages and disadvantages of current mathematical models,the future development and the related key problems are also discussed in the end.Numerical results showed that the volume concentration and the characteristic radius of inclusions have a 'W' shape distribution under the continuous casting mold.

关 键 词：钢液 夹杂物 数学模型 空间分布 碰撞长大 形貌 

分 类 号：TF704.7[冶金工程—钢铁冶金]