【摘要】 <正> 一、前言 应用数学模型对顶吹下熔池流场进行研究,已经做了一些工作,这些工作都将凹陷以外的熔池自由面处理为水平面,且未考虑凹陷边缘有一对流场有重要影响的唇状突起的特征。在本文工作中,考虑了凹陷边缘有一唇状突起以及凹陷以外熔池的自由面并更多还原

【Abstract】 In this work, the flow field in a converter bath caused by top-blown imping gas jet is studied by using a physical model together with method of numerical simulation. The numerical simulation uses vorticity an 3 stream function as chief dependent variables and k-ε tubulence two equations model. To the main boundary condition, i.e. the bath free surface with the cavity as its characteristics, a semiempirical boundary condition equation is used, which expresses the mechanism of the flow field and the geometrical form of the ’bath free surface, and involves the. chief geometrical parameters of the cavity and bath. The results obtained by numerical simulation is in agreement with those obtained from experiments.更多还原