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首页> 美国政府科技报告 >Numerical Modeling of Contaminant Transport in Fractured Porous Media using Mixed Finite Element and Finite Volume Methods
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Numerical Modeling of Contaminant Transport in Fractured Porous Media using Mixed Finite Element and Finite Volume Methods

机译：裂隙多孔介质中污染物运移的混合有限元和有限体积法数值模拟

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摘要

A mathematical model for contaminant species passing through fractured porous media is presented. In the numerical model, we combine two locally conservative methods, i.e. mixed finite element (MFE) and the finite volume methods. Adaptive triangle mesh is used for effective treatment of the fractures. A hybrid MFE method is employed to provide an accurate approximation of velocities field for both the fractures and matrix which are crucial to the convection part of the transport equation. The finite volume method and the standard MFE method are used to approximate the convection and dispersion terms respectively. The model is used to investigate the interaction of adsorption with transport and to extract information on effective adsorption distribution coefficients. Numerical examples in different fractured media illustrate the robustness and efficiency of the proposed numerical model.

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