A Coupled Darcy-Brinkman-NS Simultation Model of Wellbore Effect of an Monitor Well
Xu Ya
Xue Xiangshan
Liu Yuqiang
Liu Jingcai
Lu Dong
Abstract：In this paper,three different flow equations,namely,Darcy law,Brinkman equation and Navier-Stoke equation,are employed to simulate the water movement with different flow conditions within and around the wellbore in a confined aquifer. Based on the principles of continuity,three different flow equations are coupled.The coupled model is used to simulate the impact of wellbore in aquifer on the head distribution and water movement.Results indicate that the influence of wellbore increases with the strength of three-dimensional flow and wellbore diameter.In addition,being compared with the sandy soil aquifer,wellbore effect is more obvious in clay or similar aquifers with lower permeability and smaller storage coefficient.By conducting parameter sensitivity analysis,it also can be found that the sensitivity ratio differs in different value zones for the same parameter,while for different parameters,wellbore effect is more sensitive to well diameter than other parameters.
Keywords：mathematical modelwellbore effectmonitor welldata biasunderground water
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 1349-1356 )