An efficient multiscale preconditioner for large-scale highly heterogeneous flow

S Fu, E Chung, L Zhao - SIAM Journal on Scientific Computing, 2024 - SIAM
We propose an efficient and robust multiscale preconditioner for large-scale incompressible
flow in highly heterogeneous porous media. We start from the discretization of the first-order …

A multiscale method with patch for the solution of stochastic partial differential equations with localized uncertainties

M Chevreuil, A Nouy, E Safatly - Computer Methods in Applied Mechanics …, 2013 - Elsevier
We here propose a multiscale numerical method for the solution of stochastic parametric
partial differential equations with localized uncertainties described with a finite number of …

An Adaptive Preconditioner for Three-Dimensional Single-Phase Compressible Flow in Highly Heterogeneous Porous Media

S Fu, E Chung, L Zhao - Multiscale Modeling & Simulation, 2024 - SIAM
In this paper, we study two-grid preconditioners for three-dimensional single-phase
nonlinear compressible flow in highly heterogeneous porous media arising from reservoir …

A multiscale method for semi-linear elliptic equations with localized uncertainties and non-linearities

A Nouy, F Pled - ESAIM: Mathematical Modelling and Numerical …, 2018 - numdam.org
A multiscale numerical method is proposed for the solution of semi-linear elliptic stochastic
partial differential equations with localized uncertainties and non-linearities, the …

A frozen Jacobian multiscale mortar preconditioner for nonlinear interface operators

B Ganis, G Pencheva, MF Wheeler, T Wildey… - Multiscale Modeling & …, 2012 - SIAM
We present an efficient approach for preconditioning systems arising in multiphase flow in a
parallel domain decomposition framework known as the mortar mixed finite element method …

A multiscale preconditioner for stochastic mortar mixed finite elements

MF Wheeler, T Wildey, I Yotov - Computer methods in applied mechanics …, 2011 - Elsevier
The aim of this paper is to introduce a new approach to efficiently solve sequences of
problems that typically arise when modeling flow in stochastic porous media. The governing …

A stochastic dimension reduction multiscale finite element method for groundwater flow problems in heterogeneous random porous media

X He, L Jiang, JD Moulton - Journal of hydrology, 2013 - Elsevier
In this paper we present a stochastic dimension reduction multiscale finite element method
for solving groundwater flow problems in heterogeneous random porous media. The …

Stochastic multiscale flux basis for Stokes-Darcy flows

I Ambartsumyan, E Khattatov, CQ Wang… - Journal of Computational …, 2020 - Elsevier
Three algorithms are developed for uncertainty quantification in modeling coupled Stokes
and Darcy flows. The porous media may consist of multiple regions with different properties …

A deep learning based reduced order modeling for stochastic underground flow problems

Y Wang, E Chung, S Fu - Journal of Computational Physics, 2022 - Elsevier
In this paper, we propose a deep learning based reduced order modeling method for
stochastic underground flow problems in highly heterogeneous media. We aim to utilize …

Multi-element least square HDMR methods and their applications for stochastic multiscale model reduction

L Jiang, X Li - Journal of Computational Physics, 2015 - Elsevier
Stochastic multiscale modeling has become a necessary approach to quantify uncertainty
and characterize multiscale phenomena for many practical problems such as flows in …