四川大学学报：工程科学版2012，Vol.44Issue(2)：43-51,9.
倾斜地下水含水层混合3维溶质运移数值模拟
A Hybrid 3-D Numerical Model for Solute Transport in Declining Aquifer System
摘要
Abstract
The average surface of head gradient in the irregular triangular prism element was proposed to develop a simplified numerical model of solute transport in the irregular groundwater system.The results of the solute mass balance in a triangular prism element were calculated using the hybrid finite element method and the finite difference method basing on the average surface of head gradient.The net lateral solute mass in the control volume to the node was computed by the finite element method and the vertical solute mass to the node by the finite difference method.With the proposed method,the 3-D numerical model was developed and applied to simulate the solute transport in different hypothetic examples.The simulation results of the proposed model agreed well with the analytic solutions.The solute transport model,which has the advantage of saving the computational cost and can be applied to irregular aquifer system,was established on the simplified 3-D groundwater model.Furthermore,upwind finite element scheme and upwind finite difference method were used respectively in the horizontal and vertical directions,which can minimize the numerical oscillation when relatively steep concentration fronts are simulated.关键词
溶质运移/混合3维数值模拟/迎风加权格式/倾斜含水层Key words
solute transport/hybrid 3-D numerical model/upwind scheme/declining aquifer system分类
矿业与冶金引用本文复制引用
朱焱,史良胜,杨金忠..倾斜地下水含水层混合3维溶质运移数值模拟[J].四川大学学报：工程科学版,2012,44(2):43-51,9.基金项目
国家重点基础研究发展“973”计划（2010CB4288）资助项目 （）
国家自然科学基金资助项目 （）
教育部博士学术新人奖资助项目 （）
武汉大学2008年博士研究生自主科研项目资助 （）
