Efficient triple-grid multiscale finite element method for 3D groundwater flow simulation in heterogeneous porous media
作者： Yifan Xie , Jichun Wu , Tongchao Nan , Yuqun Xue , Chunhong Xie
DOI: 10.1016/J.JHYDROL.2017.01.027
关键词:
摘要: In this paper, an efficient triple-grid multiscale finite element method (ETMSFEM) is proposed for 3D groundwater simulation in heterogeneous porous media. The main idea of to employ new linear base functions and the domain decomposition technique solve local reduced elliptical problem, thereby simplifying function construction process improving efficiency. Furthermore, by using ETMSFEM functions, can Darcy’s equation with high efficiency obtain a continuous velocity field. Therefore, considerably reduce computational cost solving heads velocities, which crucial large-scale simulations. application section, we present numerical examples compare several classical methods demonstrate its effectiveness.
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