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- Title
Robust finite element methods and solvers for the Biot–Brinkman equations in vorticity form.
- Authors
Caraballo, Ruben; In, Chansophea Wathanak; Martín, Alberto F.; Ruiz‐Baier, Ricardo
- Abstract
In this article, we propose a new formulation and a suitable finite element method for the steady coupling of viscous flow in deformable porous media using divergence‐conforming filtration fluxes. The proposed method is based on the use of parameter‐weighted spaces, which allows for a more accurate and robust analysis of the continuous and discrete problems. Furthermore, we conduct a solvability analysis of the proposed method and derive optimal error estimates in appropriate norms. These error estimates are shown to be robust in a variety of regimes, including the case of large Lamé parameters and small permeability and storativity coefficients. To illustrate the effectiveness of the proposed method, we provide a few representative numerical examples, including convergence verification and testing of robustness of block‐diagonal preconditioners with respect to model parameters.
- Subjects
FINITE element method; VORTEX motion; VISCOUS flow; POROUS materials; EQUATIONS; STOKES equations
- Publication
Numerical Methods for Partial Differential Equations, 2024, Vol 40, Issue 3, p1
- ISSN
0749-159X
- Publication type
Article
- DOI
10.1002/num.23083