Journal ArticleDOI
On stability and convergence of finite element approximations of biot's consolidation problem
TLDR
In this paper, a family of decay functions, parametrized by the number of time steps, is derived for the fully discrete backward Euler-Galerkin formulation, showing that the pore-pressure oscillations, arising from an unstable approximation of the incompressibility constraint on the initial condition, decay in time.Abstract:
Stability and convergence analysis of finite element approximations of Biot's equations governing quasistatic consolidation of saturated porous media are, discussed. A family of decay functions, parametrized by the number of time steps, is derived for the fully discrete backward Euler–Galerkin formulation, showing that the pore-pressure oscillations, arising from an unstable approximation of the incompressibility constraint on the initial condition, decay in time. Error estimates holding over the unbounded time domain for both semidiscrete and fully discrete formulations are presented, and a post-processing technique is employed to improve the pore-pressure accuracy.read more
Citations
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Book ChapterDOI
Stabilized Finite Element Methods
TL;DR: A brief overview of stabilized finite element methods and their application to the advection-diffusion equation is given in this paper, along with a discussion of the developments applied to these methods.
Journal ArticleDOI
Diffusion in Poro-Elastic Media
TL;DR: In this paper, a general initial-boundary-value problem for a system of partial differential equations which describes the Biot consolidation model in poro-elasticity as well as a coupled quasi-static problem in thermoelasticy is developed.
Journal ArticleDOI
Stabilized low-order finite elements for coupled solid-deformation/fluid-diffusion and their application to fault zone transients
Joshua A. White,Ronaldo I. Borja +1 more
TL;DR: In this paper, the balance of mass is augmented with an additional term representing a stabilization to the incremental change in the pressure field, which can be used to predict fault rupture and directivity where fluid flow is an important driving force.
Journal ArticleDOI
Stability, Accuracy, and Efficiency of Sequential Methods for Coupled Flow and Geomechanics
TL;DR: In this paper, the authors performed detailed stability and convergence analysis of sequential-implicit solution methods for coupled fluid flow and reservoir geomechanics, where each sub-problem (flow and mechanics) is solved implicitly.
Journal ArticleDOI
A fully coupled 3-D mixed finite element model of Biot consolidation
TL;DR: A fully coupled 3-D mixed finite element model is developed with the aim at alleviating the pore pressure numerical oscillations at the interface between materials with different permeabilities.
References
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Book
The Finite Element Method for Elliptic Problems
Philippe G. Ciarlet,J. T. Oden +1 more
TL;DR: The finite element method has been applied to a variety of nonlinear problems, e.g., Elliptic boundary value problems as discussed by the authors, plate problems, and second-order problems.
Journal ArticleDOI
General Theory of Three‐Dimensional Consolidation
TL;DR: In this article, the number of physical constants necessary to determine the properties of the soil is derived along with the general equations for the prediction of settlements and stresses in three-dimensional problems.
Book
Finite Element Methods for Navier-Stokes Equations: Theory and Algorithms
TL;DR: This paper presents the results of an analysis of the "Stream Function-Vorticity-Pressure" Method for the Stokes Problem in Two Dimensions and its applications to Mixed Approximation and Homogeneous Stokes Equations.
Journal ArticleDOI
Theory of elasticity and consolidation for a porous anisotropic solid
TL;DR: In this paper, the elasticity and consolidation theory of isotropic materials is extended to the general case of anisotropy and the method of derivation is also different and more direct.