A review of surrogate models and their application to groundwater modeling

MJ Asher, BFW Croke, AJ Jakeman… - Water Resources …, 2015 - Wiley Online Library
The spatially and temporally variable parameters and inputs to complex groundwater
models typically result in long runtimes which hinder comprehensive calibration, sensitivity …

Adaptive multiscale model reduction with generalized multiscale finite element methods

E Chung, Y Efendiev, TY Hou - Journal of Computational Physics, 2016 - Elsevier
In this paper, we discuss a general multiscale model reduction framework based on
multiscale finite element methods. We give a brief overview of related multiscale methods …

Scaling of hydraulic conductivity in porous and fractured media for continuous models: A review

HA Cetre-Orejuela, M Jaramillo… - Advances in Water …, 2024 - Elsevier
Hydraulic conductivity exhibits a high spatial variability due to the heterogeneity and
discontinuity of the geologic environments and their constituent materials. Representing …

An adaptive GMsFEM for high-contrast flow problems

ET Chung, Y Efendiev, G Li - Journal of Computational Physics, 2014 - Elsevier
In this paper, we derive an a-posteriori error indicator for the Generalized Multiscale Finite
Element Method (GMsFEM) framework. This error indicator is further used to develop an …

Residual-driven online generalized multiscale finite element methods

ET Chung, Y Efendiev, WT Leung - Journal of Computational Physics, 2015 - Elsevier
The construction of local reduced-order models via multiscale basis functions has been an
area of active research. In this paper, we propose online multiscale basis functions which …

Generalized multiscale finite element methods: Oversampling strategies

Y Efendiev, G Li, M Presho - International Journal for …, 2014 - dl.begellhouse.com
In this paper, we propose oversampling strategies in the generalized multiscale finite
element method (GMsFEM) framework. The GMsFEM, which has been recently introduced …

[图书][B] Multiscale Model Reduction

E Chung, Y Efendiev, TY Hou - 2023 - Springer
The mathematization of all sciences, the fading of traditional scientific boundaries, the
impact of computer technology, the growing importance of computer modeling and the …

Generalized multiscale finite element method for elasticity equations

ET Chung, Y Efendiev, S Fu - GEM-International Journal on …, 2014 - Springer
In this paper, we discuss the application of generalized multiscale finite element method
(GMsFEM) to elasticity equation in heterogeneous media. We consider steady state elasticity …

Model reduction for fractured porous media: a machine learning approach for identifying main flow pathways

S Srinivasan, S Karra, J Hyman, H Viswanathan… - Computational …, 2019 - Springer
Discrete fracture networks (DFN) are often used to model flow and transport in fractured
porous media. The accurate resolution of flow and transport behavior on a large DFN …

Generalized multiscale finite element methods for the reduced model of Darcy flow in fractured porous media

M Alotaibi, H Chen, S Sun - Journal of Computational and Applied …, 2022 - Elsevier
In this work, we combine the generalized multiscale finite element method (GMsFEM) with a
reduced model based on the discrete fracture model (DFM) to resolve the difficulties of …