【摘要】 本文详细介绍了多尺度有限元法的基本原理,并将其应用于非均质多孔介质中的流动问题,对水文地质参数按函数连续变化、渐变和突变3种非均质多孔介质中的二维地下水稳定流、非稳定流分别用多尺度有限元法和传统有限元法进行了计算。计算结果的对比表明,多尺度有限元法比传统有限元法有效,既节省计算量又有较高的精度。更多还原

【Abstract】 The principle of multi-scale finite element method is introduced. The method is applied to numerically simulate the groundwater flow in heterogeneous porous media. The calculation results for 2-D steady flow and unsteady flow in heterogeneous porous media with 3 kinds of hydrogeological parameters show that the proposed method is better than the traditional FEM not only in calculation speed but also in accuracy.更多还原