永利总站ylzz55|首頁|欢迎您

学术报告--张晓平:Numerical simulation of groundwater problems using a vertex-centered finite volume method
发布者: 刘召
发布时间:2020-12-01
浏览次数:185

要:

Groundwater models are used to simulate and predict aquifer conditions, and they are often formulated as  time-dependent advection-diffusion problems mathematically.  In some cases, the aquifer may contain drip irrigation, subsurface drainage system, pumping wells, drainage ditch,  etc.  Under these circumstances, the groundwater models should be regarded as point or line source problems, which needs to be treated carefully in numericalsimulation, and a locally refined mesh is prefered to discretize the model. To overcome the numerical difficulties, we propose a vertex-centered finite volume method, which is applicable for arbitrary polygonal meshes, especially for locally refined meshes. Numerical tests are conducted on various cases in groundwater problem, including single pumping well and multiple pumping wells in confined/uncofined aquifer, single pumping well in heterogenous and anisoropic aquifer, etc. Numerical results are evaluated by comparison with those simulated by a famous groundwater flow simulation software MODFLOW, which shows the accuracy and efficiency of the proposed method..


报告人:

张晓平副教授(武汉大学数学与统计学院)。


间:2020124周五上9:00-10:00

腾讯会议:249 861 068     密码2020


欢迎广大师生参加!


永利总站ylzz55|首頁|欢迎您

姓            名:

学术报告--张晓平:Numerical simulation of groundwater problems using a vertex-centered finite volume method

职            称:

邮            箱:

办     公     室:

办 公 室 电 话:

研  究  方  向:

要:

Groundwater models are used to simulate and predict aquifer conditions, and they are often formulated as  time-dependent advection-diffusion problems mathematically.  In some cases, the aquifer may contain drip irrigation, subsurface drainage system, pumping wells, drainage ditch,  etc.  Under these circumstances, the groundwater models should be regarded as point or line source problems, which needs to be treated carefully in numericalsimulation, and a locally refined mesh is prefered to discretize the model. To overcome the numerical difficulties, we propose a vertex-centered finite volume method, which is applicable for arbitrary polygonal meshes, especially for locally refined meshes. Numerical tests are conducted on various cases in groundwater problem, including single pumping well and multiple pumping wells in confined/uncofined aquifer, single pumping well in heterogenous and anisoropic aquifer, etc. Numerical results are evaluated by comparison with those simulated by a famous groundwater flow simulation software MODFLOW, which shows the accuracy and efficiency of the proposed method..


报告人:

张晓平副教授(武汉大学数学与统计学院)。


间:2020124周五上9:00-10:00

腾讯会议:249 861 068     密码2020


欢迎广大师生参加!


地址:青岛市崂山区松岭路238号   
电话:0532-66787153
邮编:266100
版权所有©中国海洋大学     永利总站ylzz55|首頁|欢迎您     鲁ICP备05002467号-1     鲁公网安备 37021202000030号

官方微信

.