Abstract An efficient three-dimensional cell-centered Finite Volume Method(ccFVM) is developed for single- phase fluid flow in fractured porous media. It works on arbitrary grids and is parallelized through OpenMP. With pressure centered in the cell,the ccFVM employs spring-in-series model for space discretization and explicit difference scheme for time discretization. It uses dynamic relaxation technique for element-by-element iteration. Numerical tests indicate that the ccFVM is as accurate as FEM,but more efficient. The parallel procedure obtains a speedup of 4.0 on CPU i7-3770 and a speedup of 4.2 on CPU i7-4770. High parallel efficiency of over 50% is achieved on both machines.
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