RT Journal Article ID 16e37c8273d6d088 A1 Dong, Chen A1 Taylor, Glenn A. A1 Sun, Shuyu T1 NUMERICAL MODELING OF CONTAMINANT TRANSPORT IN FRACTURED POROUS MEDIA USING MIXED FINITE-ELEMENT AND FINITEVOLUME METHODS JF Journal of Porous Media JO JPM YR 2011 FD 2011-04-16 VO 14 IS 3 SP 219 OP 242 K1 mixed finite-element method K1 finite-volume method K1 adaptive triangle mesh K1 fractured porous medium K1 flow transportation K1 simulation AB 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., the mixed finite-element (MFE) method and the finite-volume method. Adaptive triangle mesh is used for effective treatment of the fractures. A hybrid MFE method is employed to provide an accurate approximation of velocity fields 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 temporary evolution for the pressure distributions, streamline fields, and concentration profiles are obtained for six different arrangements of fractures. The results clearly show the distorted concentration effects caused by the ordered and disordered (random) patterns of the fractures and illustrate the robustness and efficiency of the proposed numerical model. PB Begell House LK https://www.dl.begellhouse.com/journals/49dcde6d4c0809db,3dfe7b9f450d9e7b,16e37c8273d6d088.html