Two-Grid Finite Element Method for the Stabilization of Mixed Dual-Permeability-Stokes Model With Beavers-Joseph Interface Condition
ABSTRACT
In this paper, we propose and investigate a two-grid stabilized finite element method for the mixed dual-permeability-Stokes fluid flow model with Beavers-Joseph interface condition. First, a stabilized finite element scheme for the coupled dual-permeability-Stokes problem is addressed on a coarse grid. Subsequently, on a fine grid, we first solve the matrix and microfracture subproblems via approximating the interface terms by the coarse-grid approximation, and then the Stokes subproblem. The optimal error estimates are established, and a series of numerical experiments are presented to illustrate the effectiveness, efficiency, and robustness of the proposed algorithm.
Conflicts of Interest
The authors declare no conflicts of interest.
Open Research
Data Availability Statement
The authors have nothing to report.