中文摘要：

在SOLA-VOF（solution algorithm-volume of fluid）有限差分流体力学计算方法和傅里叶导热定律的基础上，开发液态金属充型过程流动场和温度场的计算程序．并利用该程序，对带有中注式浇注系统的简单形状铸件进行充型过程仿真计算．结果表明：充型过程不平稳，存在两个明显的涡旋区，直浇道压力头作用不充分，涡旋区流体温度分布较均匀，仿真分析特征与实际注式浇注系统较吻合．

英文摘要：

Based on SOLA-VOF （solution algorithm-volume of fluid） algorithm and Fourier＇s heat-transfer theorem, a calculation program for flow field and temperature field of liquid mental filling process was developed. And by the pro- gram, the filling process of a simple shape casting with middle-pouring system was simulated. The results show that the filling process is not smooth, there are two obvious vortex zones, the role of sprue pressure head is inadequate and the fluid temperature distribution of vortex zones is uniform. These characteristics, which are obtained using numerical simulation method, agree well with those of real middle-pouring gating system.