北京科技大学学报Issue(4)：432-437,6.DOI:10.13374/j.issn1001-053x.2014.04.003
连铸中间包钢液中凝聚态氧化铝夹杂物运动行为的数值模拟
Numerical simulation of condensed Al2 O3 inclusion motion behavior in liquid steel in a continuous casting tundish
摘要
Abstract
Under the Euler-Lagrange framework, based on the quantitative description of inclusion morphology using the fractal theory, the motion behavior of condensed Al2 O3 inclusions in liquid steel in a continuous casting tundish was studied by numerical sim-ulation. It is found that liquid steel flow field and inclusion morphology influence the motion behavior of Al2 O3 inclusions in liquid steel together. With increasing inclusion size, the floating removal rate of two different morphologies of inclusions, cluster-like Al2 O3 inclu-sions and spherical Al2 O3 inclusions, becomes larger gradually. At the same inclusion size, the floating removal rate of cluster-like Al2 O3 inclusions is lower than that of spherical Al2 O3 inclusions. As the inclusion size increases, the floating removal rate of cluster-like Al2 O3 inclusions decreases more than that of spherical Al2 O3 inclusions with the same size. At the inclusion size of 20, 40, 60 and 80μm, the floating removal rate of cluster-like Al2 O3 inclusions decreases by 4.8%, 5.7%, 6.4% and 12.5% compared with spheri-cal Al2 O3 inclusions, respectively.关键词
连铸/中间包/分形维数/氧化铝/夹杂物/数值分析Key words
continuous casting/tundishes/fractal dimension/alumina/inclusions/numerical analysis分类
矿业与冶金引用本文复制引用
王耀,李宏,郭洛方..连铸中间包钢液中凝聚态氧化铝夹杂物运动行为的数值模拟[J].北京科技大学学报,2014,(4):432-437,6.基金项目
国家自然科学基金资助项目(51074020) （51074020）
