Name
Title | ||
|---|---|---|
A Stochastic Mortar Mixed Finite Element Method for Flow in Porous Media with Multiple Rock Types |
Abstract | ||
|---|---|---|
This paper presents an efficient multiscale stochastic framework for uncertainty quantification in modeling of flow through porous media with multiple rock types. The governing equations are based on Darcy's law with nonstationary stochastic permeability represented as a sum of local Karhunen-Loève expansions. The approximation uses stochastic collocation on either a tensor product or a sparse grid, coupled with a domain decomposition algorithm known as the multiscale mortar mixed finite element method. The latter method requires solving a coarse scale mortar interface problem via an iterative procedure. The traditional implementation requires the solution of local fine scale linear systems on each iteration. We employ a recently developed modification of this method that precomputes a multiscale flux basis to avoid the need for subdomain solves on each iteration. In the stochastic setting, the basis is further reused over multiple realizations, leading to collocation algorithms that are more efficient than the traditional implementation by orders of magnitude. Error analysis and numerical experiments are presented. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1137/100790689 | SIAM J. Scientific Computing |
Keywords | DocType | Volume |
traditional implementation,coarse scale mortar interface,porous media,nonstationary stochastic permeability,latter method,multiscale flux basis,local fine scale,efficient multiscale stochastic framework,stochastic collocation,local karhunen-lo,stochastic mortar mixed finite,multiple rock types,stochastic setting,element method,uncertainty quantification | Journal | 33 |
Issue | ISSN | Citations |
3 | 1064-8275 | 3 |
PageRank | References | Authors |
0.41 | 14 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Benjamin Ganis | 1 | 27 | 2.92 |
| Ivan Yotov | 2 | 481 | 103.38 |
| Ming Zhong | 3 | 4 | 0.79 |