THE WEAK GALERKIN FINITE ELEMENT METHOD FOR THE DUAL-POROSITY-STOKES MODEL

In this paper, we introduce a weak Galerkin finite element method for the dualporosity -Stokes model. The dual -porosity -Stokes model couples the dual -porosity equations with the Stokes equations through four interface conditions. In this method, we define several weak Galerkin finite element spaces and weak differential operators. We provide the weak Galerkin scheme for the model, and establish the well-posedness of the numerical scheme. The optimal convergence orders of errors in the energy norm are derived. Finally, we verify the effectiveness of the numerical method with different weak Galerkin elements on different meshes.