用VOF (VolumeofFluid)法追踪充型过程自由表面进展 ,采用有限差分法 ,在VisualC + + 4 2平台上 ,自主开发了铸造充型过程的流动与传热耦合模拟软件MAPS。应用此软件对充型过程的BenchMark实验进行了模拟 ,结果与PROCAST和BenchMark实验结果符合很好 ,表明所采用的模型和算法是正确的。在此基础上 ,结合高温合金IN738熔模铸造板类件的充型过程进行了计算 ,预报了缺陷 ,优化了工艺参数 ,并与PROCAST软件模拟结果进行了比较 ,结果一致 The VOF (VolumeofFluid) method was used to track the free surface progress of the filling process. The finite element method was used to simulate the coupled flow and heat transfer simulation software MAPS on the Visual C + + 4 2 platform. The application of this software simulates the Benchmark experiment of filling process, and the result is in good agreement with the results of PROCAST and BenchMark experiments, which shows that the model and algorithm adopted are correct. On this basis, combined with the filling process of IN738 investment castings, the defects were predicted, the process parameters were optimized, and the results were compared with the PROCAST software simulation results.