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    Generalized multiscale finite element methods for the reduced model of darcy flow in fractured porous media

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    1-s2.0-S0377042722001297-main.pdf
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    Description:
    Accepted Manuscript
    Embargo End Date:
    2023-04-19
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    Type
    Article
    Authors
    Alotaibi, Manal cc
    Chen, Huangxin
    Sun, Shuyu cc
    KAUST Department
    Computational Transport Phenomena Lab
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    KAUST Grant Number
    BAS/1/1351-01
    URF/1/3769-01
    URF/1/4074-01
    Date
    2022-04-19
    Embargo End Date
    2023-04-19
    Permanent link to this record
    http://hdl.handle.net/10754/676331
    
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    Abstract
    In this work, we combine the generalized multiscale finite element method (GMsFEM) with a reduced model based on the discrete fracture model (DFM) to resolve the difficulties of simulating flow in fractured porous media while efficiently and accurately reducing the computational complexity resulting from resolving the fine scale effects of the fractures. The geometrical structure of the fractures is discretely resolved within the model using the DFM. The advantage of using GMsFEM is to represent the fracture effects on a coarse grid via multiscale basis functions constructed using local spectral problems. Solving local problems leads to consideration and usage of small scale information in each coarse grid. Besides, the multiscale basis functions, generated following GMsFEM framework, are parameter independent and constructed once in what we call offline stage. These basis functions can be re-used for solving the problem for any input parameter when it is needed. Combining GMsFEM and DFM has been introduced in other works assuming continuous pressure across the fractures interface. This continuity is obtained when the fractures are much more permeable than that in the matrix domain. In this work, we consider a general case for the permeability in both fracture and matrix domain using the reduced model presented in Martin et al. (2005). The proposed reduction technique has significant impact on enabling engineers and scientist to efficiently, accurately and inexpensively solve the large and complex system resulted from modeling flow in fractured porous media
    Citation
    Alotaibi, M., Chen, H., & Sun, S. (2022). Generalized multiscale finite element methods for the reduced model of darcy flow in fractured porous media. Journal of Computational and Applied Mathematics, 114305. https://doi.org/10.1016/j.cam.2022.114305
    Sponsors
    The first author Manal Alotaibi would like to acknowledge the support provided by the Department of Mathematics at King Fahd University of Petroleum & Minerals (KFUPM) under Start-up Research Grant number . The work of Huangxin Chen was supported by the NSF of China (Grant No. 12122115, 11771363)
    The work of Shuyu Sun was supported by King Abdullah University of Science and Technology (KAUST) through the grants BAS/1/1351-01, URF/1/4074-01, and URF/1/3769-01
    Publisher
    Elsevier BV
    Journal
    Journal of Computational and Applied Mathematics
    DOI
    10.1016/j.cam.2022.114305
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0377042722001297
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.cam.2022.114305
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program; Computational Transport Phenomena Lab

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