山东国土资源2017，Vol.33Issue(4)：52-58,7.
模型嵌套技术在济南趵突泉泉域数值模型中的应用
Application of Local Grid Refinement Technique in Numerical Model of Baotu Spring Area in Jinan City
摘要
Abstract
In the numerical model of groundwater, it is often necessary to refine areas of some important areast.The model nesting technique only needs to modify the original model with little modification, and does not need to re-meshing.Previous studies have tended to focus on the theory of cryptography, but lack of practical application in groundwater numerical simulation.Based on the analysis of hydrogeological conditions of the Baotu Spring area in Jinan city, a numerical model of groundwater flow is established by using the groundwater numerical simulation software GMS10.0.By using more flexible and efficient sharing nodes of local grid refinement (LGR) , the key areas of western Jinan city have been refined.Comparing with the results of refined and global refinement, it is showed that LGR improves the accuracy of water level simulation in the refined and unrefined areas.LGR reduced the average absolute error of simulated water level in refined and unrefined areas by 19% and 14%, respectively.Compared with the global refinement, the running time of LGR has been reduced by 92.27% before and after operation.The disk space is reduced by 78.63% and 93.80% respectively.LGR can greatly reduce the running time of the model and disk space occupancy, and improve the simulation precision of refinement area and unrefinement area.With the construction of projects of groundwater transformation into groundwater in Jinan city, LGR can be applied to portray the fault, artificial recharge river and recharge wells precisely and server for the community, engineering better.关键词
模型嵌套(LGR)/GMS/数值模型/趵突泉/济南市Key words
Local grid refinement(LGR)/GMS/numerical model/Baotu Spring/Jinan city分类
天文与地球科学引用本文复制引用
齐欢,秦品瑞,赵振华,丁冠涛..模型嵌套技术在济南趵突泉泉域数值模型中的应用[J].山东国土资源,2017,33(4):52-58,7.基金项目
山东地矿重大科技攻关项目2012-045,项目名称:济南市市政公用事业局《海绵城市地下水补给水模型研究》课题 （）
