西南交通大学学报Issue(2)：382-387,6.DOI:10.3969/j.issn.0258-2724.2015.02.027
静磁场对熔融液滴振荡变形影响的相场模拟
Phase Field Modeling on Effects of Static Magnetic Field on Oscillatory Deformation of Molten Droplet
摘要
Abstract
In order to study the characteristics of oscillatory process of a molten silicon droplet under static magnetic field,the phase field method was adopted to numerically simulate the interface oscillation and internal fluid convection of a molten silicon droplet. The influence of an axial static magnetic field on the internal convection and interface oscillation of a molten silicon droplet with an initial shape of the second-order Legendre function was analyzed. The numerical result exhibits that the shrink of the droplet under static magnetic field is faster than that without magnetic field. The static magnetic field suppresses the fluid convection inside the droplet. As the imposed magnetic field intensity increases from 0 to 0. 9 T,the maximum values of stream function reduce from 0. 57 to 0. 08,and the internal convection and interface oscillation are weakened gradually. Under magnetic field,the ratio of long-axis to short-axis of droplet quickly tends to 1. However,the magnetic field has almost no influence on oscillation frequency of droplet. The investigation indicates that the phase-field modeling can effectively simulate the interface oscillation and internal convection of the molten droplet even with high density.关键词
相场模拟/静磁场/液滴/硅熔体Key words
phase field model/static magnetic field/droplet/molten silicon分类
能源科技引用本文复制引用
石万元,张凤超,田小红,沈骏..静磁场对熔融液滴振荡变形影响的相场模拟[J].西南交通大学学报,2015,(2):382-387,6.基金项目
国家自然科学基金资助项目（51176210）；重庆市自然科学基金资助项目（cstc2012jjA50003）；中央高校基本科研业务费专项资金资助项目 （）
