A NEW NUMERICAL METHOD FOR GROUNDWATER FIOW AND SOLUTE TRANSPORT USING VELOCITY FIELD  

作　　者：ZHANG Qian-fei LAN Shou-qi WANG Yan-ming XU Yong-fu 

机构地区：[1]School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200030,China [2]Shanghai Municipal Engineering Design Institute, Shanghai 200092, China [3]Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China

出　　处：《Journal of Hydrodynamics》2008年第3期356-364,共9页水动力学研究与进展B辑（英文版）

基　　金：the National Natural Science Foundation of China (Grant No. 40201024)

摘　　要：A new numerical method for groundwater flow analysis was introduced to estimate simultaneously velocity vectors and water pressure head. The method could be employed to handle the vertical flow under variably saturated conditions and for horizontal flow as well. The method allows for better estimation of velocities at the element nodes which can be used as direct input to transport models. The advection-dispersion process was treated by the Eulerian-Lagrangian approach with particle tracking technique using the velocities at FEM nodes. The method was verified with the classical one dimensional model and applied to simulate contaminant transport process through a slurry wall as a barrier to prevent leachate pollution from a sanitary landfill.A new numerical method for groundwater flow analysis was introduced to estimate simultaneously velocity vectors and water pressure head. The method could be employed to handle the vertical flow under variably saturated conditions and for horizontal flow as well. The method allows for better estimation of velocities at the element nodes which can be used as direct input to transport models. The advection-dispersion process was treated by the Eulerian-Lagrangian approach with particle tracking technique using the velocities at FEM nodes. The method was verified with the classical one dimensional model and applied to simulate contaminant transport process through a slurry wall as a barrier to prevent leachate pollution from a sanitary landfill.

关 键 词：groundwater flow solute transport velocity vectors finite element method Eulerian-Lagrangian approach particletracking technique 

分 类 号：P641.2[天文地球—地质矿产勘探]