Chang-Hao Xiao, Jin-Biao Yu, Wei-Dong Cao, Yong Wang, Xiao-Hong Wang, Zhi-Feng Liu, Min Wang
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引用次数: 0
Abstract
In this work, we improve the traditional adaptive mesh refinement (AMR) by combining it with the finite analytical method (FAM) to solve the multiphase flow in heterogeneous porous media numerically. The FAM can provide rather accurate internodal transmissibility, and it is employed to improve the accuracy of coarsening and refining processes in AMR. The high performance of the proposed AMR-FAM is indicated through numerical tests for solving the two-phase flow in 2D heterogeneous media. The numerical simulation results indicate that the proposed AMR-FAM is more accurate than the traditional AMR-FAM. Compared with the simulation in the original fine grids, the proposed AMR-FAM can provide nearly the same results. Moreover, the computational cost in the AMR grids is only approximately one-third of the cost in the original fine grids according to our numerical tests.
期刊介绍：
The journal welcomes manuscripts that substantially contribute to the understanding of the complex mechanical behaviour of geomaterials (soils, rocks, concrete, ice, snow, and powders), through innovative experimental techniques, and/or through the development of novel numerical or hybrid experimental/numerical modelling concepts in geomechanics. Topics of interest include instabilities and localization, interface and surface phenomena, fracture and failure, multi-physics and other time-dependent phenomena, micromechanics and multi-scale methods, and inverse analysis and stochastic methods. Papers related to energy and environmental issues are particularly welcome. The illustration of the proposed methods and techniques to engineering problems is encouraged. However, manuscripts dealing with applications of existing methods, or proposing incremental improvements to existing methods – in particular marginal extensions of existing analytical solutions or numerical methods – will not be considered for review.
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