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铸造充型过程对铸件质量的影响很大，文中对流体充型过程的数值模拟做了研究。以ＳＯＬＡ－ＶＯＦ法为基础提出了改进算法。在三维自由表面处理上，提出一种简单而实用的方法，对原算法的累积流量误差做了修正，方程求解改用预处理共轭梯度法，保证了解的收敛性。为了模拟紊流现象，引入了Ｋ－ε双方程模型，用实验验证这些改进的效果，又用国际会议的标准检验实验进行了验证，着重于紊流现象的分析，模拟结果与验证实验吻合较好。
Casting filling process has a great influence on the quality of castings. In this paper, the numerical simulation of fluid filling process is studied. Based on the SOLA-VOF method, an improved algorithm is proposed. In the three-dimensional free surface treatment, a simple and practical method is proposed to correct the cumulative error of the original algorithm. The equation is solved by using the preconditioned conjugate gradient method to ensure the convergence of the solution. In order to simulate the turbulence phenomenon, a K-ε two-equation model was introduced, and the effect of these improvements was verified by experiments. The results were verified by the standard test of the international conference, focusing on the analysis of turbulence. The simulation results were in good agreement with the experimental ones it is good.