在微观尺度上的凝固模型描述的是一个比较特殊的现象 ,但它是联系包括充型过程中液体的流动 ,宏观尺度上的热传输和宏观 /微观尺度上的质量传输等过程的中心纽带。本文介绍了微观偏析模拟的发展历史 ,简单介绍了微观模拟的模型和方程 ,指出了微观模拟技术现在的不足以及发展方向 The solidification model at the micro scale describes a rather special phenomenon, but it is the central bond between the processes involved in the flow of liquids, including macro-scale heat transfer and macro / micro-scale mass transfer. This paper introduces the development history of microsegregation simulation, briefly introduces the models and equations of microcosmic simulation, points out the shortcomings and development direction of micromixture simulation