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High Order Compact Finite Difference Methods for Non-Fickian Flows in Porous Media

In this work, fourth-order compact block-centered finite difference (CBCFD) schemes combined with the Crank-Nicolson discretization are constructed and analyzed for solving parabolic integro-differential type non-Fickian flows in one-dimensional and two-dimensional cases. Stability analyses of the constructed schemes are derived rigorously. We also obtain the optimal second-order convergence in temporal increment and the fourth-order convergence in spatial direction for both velocity and pressure. To verify the validity of the CBCFD schemes, we present some experiments to show that the numerical results are in agreement with our theoretical analysis.

preprint2022arXivOpen access
Xuan ZhaoZiyan LiXiaoli Li
math.AP
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Open access3 authors1 topic
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Xuan ZhaoZiyan LiXiaoli Li

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