通过采用构造插值函数以及对数值模拟过程中局部网格的进一步细化,一方面把修正的等液面收缩量法与网格细化进行结合,有效地提高了缩孔的预测精度,另一方面G/T~(1/2)判据与网格细化的综合运用,一定程度上实现了缩松预测中量的概念,是对铸件缩孔缩松数值模拟方法的有效补充。 By using interpolation function and further refinement of local grid during numerical simulation, on the one hand, the modified equal liquid surface shrinkage method is combined with grid refinement to effectively improve the prediction accuracy of shrinkage cavity. Another The comprehensive application of the G / T ~ (1/2) criterion and the mesh refinement, to a certain extent, realizes the concept of the amount of shrinkage prediction, which is an effective supplement to the numerical simulation method of shrinkage shrinkage of castings.