Online Mixed Multiscale Finite Element Method with Oversampling and Its Applications
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摘要In this paper, we consider an online basis enrichment mixed generalized multiscale method with oversampling, for solving flow problems in highly heterogeneous porous media. This is an extension of the online mixed generalized multiscale method (Chan et al. in Numer Math Theory Methods Appl 9(4):497–527, 2016). The multiscale online basis functions are computed by solving a Neumann problem in an over-sampled domain, instead of a standard neighborhood of a coarse face. We are motivated by the restricted domain decomposition method. Extensive numerical experiments are presented to demonstrate the performance of our methods for both steady-state flow, and two-phase flow and transport problems.
著者Yanfang Yang, Shubin Fu, Eric T. Chung
期刊名稱Journal of Scientific Computing
出版年份2020
月份2
卷號82
期次2
出版社Springer
文章號碼31
國際標準期刊號0885-7474
電子國際標準期刊號1573-7691
語言美式英語

上次更新時間 2020-25-09 於 12:41