Mo Mu

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We study numerical methods for solving a coupled Stokes-Darcy problem in porous media flow applications. A two-grid method is proposed for decoupling the mixed model by a coarse grid approximation to the interface coupling conditions. Error estimates are derived for the proposed method. Both theoretical analysis and numerical experiments show the efficiency(More)
A new approach was presented in [11] for construcling preconditioners through a function approximation for the domain decomposi~ion-based preconditioned conjugate gradient method. This work extends the approach to more general cases where grids may be nonuniform; elliptic op-eratoI'B may have variable coefficients (but are separable and self-adjoint); and(More)