摘要
根据地下水模拟中某些实际问题的需要，尝试了一种三维边界元（３Ｄ－ＢＥＭ）和二维有限元（２Ｄ－ＦＥＭ）相结合的数值模拟方法。在局部均质的三维流明显的区域，用３Ｄ－ＢＥＭ模拟；而在大部分非均质的以二维流为主的区域，用２Ｄ－ＦＥＭ模拟。在二者公共的内边界上，通过水流的连续性条件把二者耦合成一个体系。这种方法发挥了二者各自的长处。
This paper has tried a numerical simulation method which combines three-dimontsion boundary element and two-dimonsion finite element to solve certain problems in groundwater simulation. 3D-BEM has been used in the homogeneous region where there dimension flow is obvious,while 2D-FEM has been applied in the most non homogeneous area where two dimension flow is dominant.()n the common internal houndary of these two region,a continuum condition of flow has been utilized to combine the two parts. This method has taken the advantage of the BEM and the FEM.
