Numerical solution of Richards' equation: A review of advances and challenges

MW Farthing, FL Ogden - Soil Science Society of America …, 2017 - Wiley Online Library
Core Ideas The numerical solution of Richards' equation remains challenging. Space/time
discretization affects both computational effort and accuracy. Adaption of space and time …

An advanced discrete fracture model for variably saturated flow in fractured porous media

B Koohbor, M Fahs, H Hoteit, J Doummar… - Advances in Water …, 2020 - Elsevier
Accurate modeling of variably saturated flow (VSF) in fractured porous media with the
discrete fracture-matrix (DFM) model is a computationally challenging problem. The …

Effect of temperature on convective-reactive transport of CO2 in geological formations

S Tabrizinejadas, M Fahs, H Hoteit, A Younes… - International Journal of …, 2023 - Elsevier
Geological CO 2 sequestration (GCS) remains the main promising solution to mitigate global
warming. Understating the fate of CO 2 behavior is crucial for securing its containment in the …

Three-dimensional natural convection, entropy generation and mixing in heterogeneous porous medium

X Yang, Q Shao, H Hoteit, J Carrera, A Younes… - Advances in Water …, 2021 - Elsevier
Abstract Three-dimensional (3D) natural convection (NC) processes in heterogeneous
porous media and associated energy losses and mixing processes are still poorly …

[HTML][HTML] A discontinuous control volume finite element method for multi-phase flow in heterogeneous porous media

P Salinas, D Pavlidis, Z Xie, H Osman, CC Pain… - Journal of …, 2018 - Elsevier
We present a new, high-order, control-volume-finite-element (CVFE) method for multiphase
porous media flow with discontinuous 1st-order representation for pressure and …

Mixed-hybrid and vertex-discontinuous-Galerkin finite element modeling of multiphase compositional flow on 3D unstructured grids

J Moortgat, A Firoozabadi - Journal of Computational Physics, 2016 - Elsevier
Problems of interest in hydrogeology and hydrocarbon resources involve complex
heterogeneous geological formations. Such domains are most accurately represented in …

[HTML][HTML] Sensitivity and identifiability of hydraulic and geophysical parameters from streaming potential signals in unsaturated porous media

A Younes, J Zaouali, F Lehmann… - Hydrology and Earth …, 2018 - hess.copernicus.org
Fluid flow in a charged porous medium generates electric potentials called streaming
potential (SP). The SP signal is related to both hydraulic and electrical properties of the soil …

Higher-order simulation of two-phase compositional flow in 3D with non-planar fractures

A Zidane, A Firoozabadi - Journal of Computational Physics, 2020 - Elsevier
Non-planar fractures are often created in hydraulic fracturing. These irregular shape
fractures may reduce the penetration into the formation; they may also improve the reservoir …

Image analysis method for the measurement of water saturation in a two-dimensional experimental flow tank

B Belfort, S Weill, F Lehmann - Journal of hydrology, 2017 - Elsevier
A novel, non-invasive imaging technique is proposed that determines 2D maps of water
content in unsaturated porous media. This method directly relates digitally measured …

Numerical investigation of flow instabilities using fully unstructured discretization for variably saturated flow problems

D Su, KU Mayer, KTB MacQuarrie - Advances in Water Resources, 2020 - Elsevier
Richards equation for variably saturated flow can exhibit stability problems due to its
nonlinearity. The challenge is to resolve sharp wetting fronts without introducing spurious …