【摘要】 本文采用混合拉普接斯变换有限单元法，求解地下水溶质径向弥散问题，通过与精确解析解、数值解及砂槽试验资料对比，表明该算法效率高、精度好，能有效地克服数值困难。更多还原

【Abstract】 The HLTFEM is used to solve the problems of solute radal discussion in subeurfsce flow.Compered with the exact analytical solution,the numerical solution by multiple cell belanca method and alga from an injecting test in a sand boxmodel, the computational resultS show thst this method is of high efficiency and good accuracy,and is capable of effectivelyovercoming the numerical difficulties.更多还原