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Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2024 MCQ for Mathematics of Computation is 1.78.

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Numerical analysis of a mixed-dimensional poromechanical model with frictionless contact at matrix–fracture interfaces
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by Francesco Bonaldi, Jérôme Droniou and Roland Masson;
Math. Comp. 93 (2024), 2103-2134
DOI: https://doi.org/10.1090/mcom/3949
Published electronically: March 7, 2024

Abstract:

We present a complete numerical analysis for a general discretization of a coupled flow–mechanics model in fractured porous media, considering single-phase flows and including frictionless contact at matrix–fracture interfaces, as well as nonlinear poromechanical coupling. Fractures are described as planar surfaces, yielding the so-called mixed- or hybrid-dimensional models. Small displacements and a linear elastic behavior are considered for the matrix. The model accounts for discontinuous fluid pressures at matrix–fracture interfaces in order to cover a wide range of normal fracture conductivities.

The numerical analysis is carried out in the Gradient Discretization framework (see J. Droniou, R. Eymard, T. Gallouët, C. Guichard, and R. Herbin [The gradient discretisation method, Springer, Cham, 2018]), encompassing a large family of conforming and nonconforming discretizations. The convergence result also yields, as a by-product, the existence of a weak solution to the continuous model. A numerical experiment in 2D is presented to support the obtained result, employing a Hybrid Finite Volume scheme for the flow and second-order finite elements ($\mathbb {P}_2$) for the mechanical displacement coupled with face-wise constant ($\mathbb P_0$) Lagrange multipliers on fractures, representing normal stresses, to discretize the contact conditions.

References
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Bibliographic Information
  • Francesco Bonaldi
  • Affiliation: IMAG, Univ Montpellier, CNRS, Montpellier, France; and LAMPS, Université de Perpignan Via Domitia, Perpignan, France
  • MR Author ID: 1019710
  • ORCID: 0000-0003-0512-0362
  • Email: francesco.bonaldi@univ-perp.fr
  • Jérôme Droniou
  • Affiliation: School of Mathematics, Monash University, Victoria 3800, Australia; and IMAG, Univ Montpellier, CNRS, Montpellier, France
  • MR Author ID: 655312
  • ORCID: 0000-0002-3339-3053
  • Email: jerome.droniou@umontpellier.fr
  • Roland Masson
  • Affiliation: Université Côte d’Azur, Inria, CNRS, Laboratoire J.A. Dieudonné, team Coffee, Nice, France
  • MR Author ID: 610229
  • Email: roland.masson@univ-cotedazur.fr
  • Received by editor(s): February 6, 2022
  • Received by editor(s) in revised form: January 3, 2024, and January 21, 2024
  • Published electronically: March 7, 2024
  • Additional Notes: This work was partially funded by the European Union (ERC Synergy, NEMESIS, project number 101115663)
    The first author is the corresponding author
  • © Copyright 2024 American Mathematical Society
  • Journal: Math. Comp. 93 (2024), 2103-2134
  • MSC (2020): Primary 65M12, 76S05, 74B10, 74M15
  • DOI: https://doi.org/10.1090/mcom/3949
  • MathSciNet review: 4759371