Abstract
Based on overlapping domain decomposition, we construct a parallel mixed finite element algorithm for solving the compressible miscible displacement problem in porous media. The algorithm is fully parallel. We consider the relation between the convergence rate and discretization parameters, including the overlapping degree of the subspaces. We give the corresponding error estimate, which tells us that only two iterations are needed to reach to given accuracy at each time level. Numerical results are presented to confirm our theoretical analysis.
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