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Mathematics > Numerical Analysis

arXiv:2304.13480 (math)
[Submitted on 26 Apr 2023]

Title:Non-Local Multi-Continuum method (NLMC) for Darcy-Forchheimer flow in fractured media

Authors:Denis Spiridonov, Maria Vasilyeva
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Abstract:This work presents the application of the non-local multicontinuum method (NLMC) for the Darcy-Forchheimer model in fractured media. The mathematical model describes a nonlinear flow in fractured porous media with a high inertial effect and flow speed. The space approximation is constructed on the sufficiently fine grid using a finite volume method (FVM) with an embedded fracture model (EFM) to approximate lower dimensional fractures. A non-local model reduction approach is presented based on localization and constraint energy minimization. The multiscale basis functions are constructed in oversampled local domains to consider the flow effects from neighboring local domains. Numerical results are presented for a two-dimensional formulation with two test cases of heterogeneity. The influence of model nonlinearity on the multiscale method accuracy is investigated. The numerical results show that the non-local multicontinuum method provides highly accurate results for Darcy-Forchheimer flow in fractured media.
Subjects: Numerical Analysis (math.NA)
Cite as: arXiv:2304.13480 [math.NA]
  (or arXiv:2304.13480v1 [math.NA] for this version)
  https://doi.org/10.48550/arXiv.2304.13480

Submission history

From: Denis Spiridonov [view email]
[v1] Wed, 26 Apr 2023 12:06:25 UTC (1,000 KB)
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