Abstract: Based on the empirical equation of one-dimensional effective thermal conductivity within mathematical model of solid-liquid phase change,a modified equation of effective thermal conductivity is proposed and applied to solving the two-dimensional problem according to mathematical analysis and experimental data. The results of the model simulation are compared with the experimental data and the computing method for effective thermal conductivity is reasonable.

摘要： 在一维固液相变数学模型中有效热导率计算公式的研究基础上，根据理论分析和实验数据，对一维有效热导率进行了修正，并把有效热导率计算公式应用到二维相变问题中.通过对等热通量和等壁温边界条件的仿真计算结果与实验数据相比较，说明了本文的有效热导率计算方法的合理性.