Wu Qiang, Zhou Wanfang, Pan Guoying, Ye Siyuan
Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, China.
Ground Water. 2009 May-Jun;47(3):453-61. doi: 10.1111/j.1745-6584.2008.00525.x. Epub 2008 Dec 16.
A generalized discrete-continuum model is developed to simulate ground water flow in the karst aquifers of North China. The model is a hybrid numerical flow model, which takes into account both quick conduit flow and diffusive fissure flow. The conduit flow is represented by a discrete network model, and the fissure flow is modeled by a continuum approach. The developed model strongly emphasizes the function of the conduits in the flow fields. They control the general drainage pattern, as demonstrated in the simulation of a complex karst aquifer in North China. The model reproduces reasonably well the flow field in response to an unanticipated discharge of ground water from the karst aquifer into an underground mine based on the aquifer parameters that are manually calibrated from a multiple-well pumping test. Sensitivity of the model to the aquifer parameters was evaluated in the context of the case study.
开发了一种广义离散-连续介质模型来模拟中国北方岩溶泉含水层中的地下水流。该模型是一种混合数值流模型，它同时考虑了快速管道流和扩散裂隙流。管道流由离散网络模型表示，裂隙流则采用连续介质方法进行建模。所开发的模型强烈强调管道在流场中的作用。它们控制着总体排水模式，这在中国北方一个复杂岩溶泉含水层的模拟中得到了证明。该模型基于从多孔抽水试验中手动校准的含水层参数，合理地再现了岩溶泉含水层向地下矿井意外排水时的流场。在案例研究的背景下评估了该模型对含水层参数的敏感性。
