Review of numerical solution of Richardson–Richards equation for variably saturated flow in soils

Y Zha, J Yang, J Zeng, CHM Tso… - Wiley Interdisciplinary …, 2019 - Wiley Online Library
Modeling variably saturated flow in the vadose zone is of vital importance to many scientific
fields and engineering applications. Richardson–Richards equation (RRE, which is …

An improved matrix split-iteration method for analyzing underground water flow

SR Zhu, LZ Wu, XL Song - Engineering with Computers, 2023 - Springer
Abstract The Hermitian and skew-Hermitian splitting iteration method (HSS) is commonly an
effective linear iterative method for solving sparse non-Hermite positive definite equations …

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 …

Coupling mixed hybrid and extended finite element methods for the simulation of hydro-mechanical processes in fractured porous media

L Guo, M Fahs, B Koohbor, H Hoteit, A Younes… - Computers and …, 2023 - Elsevier
Simulation of coupled hydro-mechanical (HM) processes in fractured porous media requires
specific numerical schemes to deal with nonlinearity, computational burden, and …

Application of modified iterative method to simulate rainfall infiltration in unsaturated soils

S Zhu, L Wu, P Cheng, J Zhou - Computers and Geotechnics, 2022 - Elsevier
A modified Gauss-Seidel iterative method (MP (m)-GS) with multistep preconditioner is
developed to solve partial differential equations of rainfall infiltration. The finite difference …

Modeling variable-density flow in saturated-unsaturated porous media: An advanced numerical model

A Younes, B Koohbor, B Belfort, P Ackerer… - Advances in Water …, 2022 - Elsevier
Modeling variable-density flow in unconfined aquifers is a challenging task because of the
nonlinear coupling between variably saturated flow and contaminant transport. This results …

Modelling water dynamics with DNDC and DAISY in a soil of the North China Plain: a comparative study

R Kröbel, Q Sun, J Ingwersen, X Chen, F Zhang… - … Modelling & Software, 2010 - Elsevier
The performance of the DNDC and Daisy model to simulate the water dynamics in a
floodplain soil of the North China Plain was tested and compared. While the DNDC model …

Sensitivity of meteorological-forcing resolution on hydrologic variables

FZ Maina, ER Siirila-Woodburn… - Hydrology and Earth …, 2020 - hess.copernicus.org
Projecting the spatiotemporal changes in water resources under a no-analog future climate
requires physically based integrated hydrologic models which simulate the transfer of water …

A robust fully mixed finite element model for flow and transport in unsaturated fractured porous media

A Younes, H Hoteit, R Helmig, M Fahs - Advances in Water Resources, 2022 - Elsevier
A fully mixed finite element (MFE) model is developed for nonlinear flow and transport in
unsaturated fractured porous media with matrix-fracture and fracture-fracture fluid and mass …

Application of improved Picard iteration method to simulate unsaturated flow and deformation in deformable porous media

S Zhu, L Zhang, L Wu, L Tan, H Chen - Computers and Geotechnics, 2024 - Elsevier
In this paper, we investigate the effectiveness of the cascadic multigrid method applied to
improved Picard iteration method for nonlinear problems arising in deforming variably …