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Modeling and design of air injection-based hydraulic barriers Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-31 Ilan Ben-Noah
Hydraulic barriers are useful for manipulating groundwater flow to mitigate and contain harmful environmental effects. Injecting air into the aquifer has been suggested as a cost-efficient, sustainable, and reversible hydraulic barrier. In this, the injected air reduces the conductance of the aquifer to water flow. However, this practice is not commonly used despite its potential, probably due to a
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Inferring experimental colloid removal with an inverse two-population model linking continuum scale data to nanoscale features Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-30 Sabrina N. Volponi, Giovanni Porta, Bashar M. Al-Zghoul, Diogo Bolster, William P. Johnson
Models of colloid transport in porous media that assume constant fractional loss per grain passed fail in the presence of repulsive barriers to attachment, under which condition experiments produce profiles of colloid concentrations with distance from source that are nonexponential. Nonexponential removal is hypothesized to arise from variable likelihood of encountering nanoscale regions of attraction
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Simplifications of macroscopic models for heat and mass transfer in porous media Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-28 Didier Lasseux, Francisco J. Valdés-Parada
When performing upscaling of transport phenomena in multiscale systems it is not uncommon that terms of different physical nature than those present at the underlying scale arise in the resulting averaged differential equations. For diffusive species mass transfer with heterogeneous reaction and conductive heat transfer, additional terms result from upscaling using the volume averaging method, which
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On the permeability-surface area-porosity relationship for dissolving porous media Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-23 Kai Li, Ran Hu, Ya-Nan Zhang, Zhibing Yang, Yi-Feng Chen
Dissolution in porous media is widespread in natural and engineered systems, accompanied by the evolution of geometric structure, permeability and surface area of the porous matrix. Although extensive research has examined dissolution dynamics in porous media, there is a lack of quantitative characterization of the relationships among permeability, surface area and porosity, which depend on dissolution
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Three-dimensional saturated-unsaturated flow to a well in an alluvial fan wedge-shaped aquifer Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-22 Mohammad M. Sedghi, Hongbin Zhan
Alluvial fan aquifers are among the most productive aquifers around the world. At present, in mathematical models of these types of aquifers, the unsaturated flow is usually neglected, and the instantaneous or delayed drainage boundary conditions are considered at the water table. The goal of this work is to present an analytical model of the drawdown due to a partially penetrating well in an unconfined
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A well-balanced conservative high-order alternative finite difference WENO (A-WENO) method for the shallow water equations Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-18 Ziyao Xu, Chi-Wang Shu
In this paper, we develop a well-balanced, conservative, high-order finite difference weighted essentially non-oscillatory (WENO) method for the shallow water equations. Our approach exactly preserves the moving-water equilibria of the shallow water equations with non-flat bottom topography. The proposed method consists of two key components. First, we reformulate the source term into a flux-gradient
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A hybrid CNN-transformer surrogate model for the multi-objective robust optimization of geological carbon sequestration Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-17 Zhao Feng, Bicheng Yan, Xianda Shen, Fengshou Zhang, Zeeshan Tariq, Weiquan Ouyang, Zhilei Han
The optimization of well controls over time constitutes an essential step in the design of cost-effective and safe geological carbon sequestration (GCS) projects. However, the computational expense of these optimization problems, due to the extensive number of simulation evaluations, presents significant challenges for real-time decision-making. In this paper, we propose a hybrid CNN-Transformer surrogate
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Incorporating geological structure into sensitivity analysis of subsurface contaminant transport Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-13 Lisa Bigler, Tara LaForce, Laura Swiler
Simulating subsurface contaminant transport at the kilometer-scale often entails modeling reactive flow and transport within and through complex geologic structures. These structures are typically meshed by hand and as a result geologic structure is usually represented by one or a few deterministically generated geological models for uncertainty studies of flow and transport in the subsurface. Uncertainty
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A training trajectory random walk model for upscaling colloid transport under favorable and unfavorable conditions Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-07 Bashar M. Al-Zghoul, William P. Johnson, Diogo Bolster
In this study, we present a general random walk model for upscaling colloid transport and retention in two-dimensional porous media. The model is based on direct sampling from spatial and temporal jump distributions of single-interceptors, colloids that first enter the near-surface zone within 200 nm of a collector surface, derived from mechanistic pore-assembly trajectory simulations. This framework
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Global sensitivity analysis of mass transfer and reaction dynamics for electrokinetic transport in porous media Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-03 R. Sprocati, A. Guadagnini, L. Ceresa, A. Gallo, M. Rolle
Electrokinetic (EK) technologies are promising solutions for the remediation of contaminated sites, particularly in low-permeability porous media. However, their widespread adoption is hindered by the challenge of predicting the complex, coupled physico-chemical processes triggered by the application of external electric fields in the subsurface. Numerical models therefore represent essential tools
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On the modeling of the foam dynamics in heterogeneous porous media Adv. Water Resour. (IF 4.0) Pub Date : 2025-01-02 Jhuan B. Cedro, Filipe F. de Paula, Grigori Chapiro
Foam flow in porous media is important in various engineering applications, including soil remediation, carbon dioxide sequestration, and enhanced oil recovery. This study explores the relationship between bubble density and permeability in foam flow models, focusing on how different approaches capture foam formation in highly permeable regions. We compare two mechanistic models numerically. The first
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Stochastic model for subsurface water flow in Swiss catchments Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-31 M.C. Bovier, S. Fedotov, S. Ferraris, A. Gentile, B. Toaldo
Understanding water movement in catchments subsurface is crucial for numerous applications such as pollutant contamination, nutrient loss, water resource management and ecosystem functioning. Among the variables of particular interest, the transit times of water particles and their statistical distribution are a desirable output. Nevertheless, past approaches assume explicitly the form of the transit
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Corrigendum to “Investigating Steady Unconfined Groundwater Flow using Physics Informed Neural Networks” [Advances in Water Resources Volume 177 (2023), 104445] Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-30 Mohammad Afzal Shadab, Dingcheng Luo, Eric Hiatt, Yiran Shen, Marc Andre Hesse
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Investigating solute transport and reaction using a mechanistically coupled geochemical and geophysical modeling approach Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-28 Flore Rembert, Nicole M. Fernandez, Linda Luquot, Roger Guérin, Damien Jougnot
The use of geoelectrical monitoring of groundwater quality and contamination is a growing and promising topic. Nowadays, geoelectrical methods are mostly used as qualitative detection tools. This study aims to better use geoelectrical signals as a complementary tool for the quantitative characterization of chemical species transport and reaction in the porous matrix by developing a coupled mechanistic
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Reactive transport modeling to reveal the impacts of beach morphodynamics, storm floods and seasonal groundwater recharge on the biogeochemistry of sandy subterranean estuaries Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-26 Stephan L. Seibert, Gudrun Massmann, Rena Meyer, Vincent E.A. Post, Janek Greskowiak
Subterranean Estuaries (STEs) are important biogeochemical reactors at the land-ocean interface. They transform dissolved species prior to discharge, thereby influencing chemical fluxes from land to sea. The coupling between physical flow and biogeochemical reactions in the STE is complex, and a deeper process understanding demands the application of reactive transport modeling (RTM). Most previous
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A computationally efficient hybrid neural network architecture for porous media: Integrating convolutional and graph neural networks for improved property predictions Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-24 Qingqi Zhao, Xiaoxue Han, Ruichang Guo, Cheng Chen
Porous media is widely distributed in nature, found in environments such as soil, rock formations, and plant tissues, and is crucial in applications like subsurface oil and gas extraction, medical drug delivery, and filtration systems. Understanding the properties of porous media, such as the permeability and formation factor, is crucial for comprehending the physics of fluid flow within them. We present
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Reactive precipitation during overlaying CO2 dissolution into brine: The role of porous structure Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-20 Shuai Zheng, Ke Xu, Dongxiao Zhang
After sequestration of CO2 into subsurface saline aquifer, CO2 cap forms at the top of a stratum. As overlaying CO2 dissolves into brine, precipitation reactions between CO2 and in-situ ions emerge. The role of reactive precipitation during this process has long been under debate due to the lack of direct observation. Here we conduct visualized experiments on high-pressure CO2 convective dissolution
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Pore-scale modeling of biofilm formation and biofilm-induced anomalous transport features in heterogenous porous media Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-20 Xueying Li, Xiaofan Yang
Biofilms and their formation dynamics are ubiquitous and complex in porous media. The mechanism of biofilm formation on solute transport behavior remains limited, which inhibits potential biofilm applications such as bioremediation. In this study, we present a new numerical solver, BioFOAM, based on the micro-continuum theory, to simulate the coupled pore-scale processes of biofilm formation, fluid
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Fully coupled morphological modelling under the combined action of waves and currents Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-19 Wei Li, Yiming Zhang, Peng Hu
The non-linear interactions of tides, waves and sediment transport in shallow coastal waters require coupled modelling of waves and currents, as well as the consideration of feedbacks between flow, sediment transport and morphology. However, most of the previous work about the wave-current morphological modelling lacks full consideration of the feedbacks of bed deformation on flow or/and assumes instant
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Study on the effects of non-uniformity of microbial growth on permeability changes in porous media Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-17 Gengyang Zang, Lijian Huang, Shilin Wang, Taijia Lu, Yanfeng Gong, Liping Chen
Based on the assumption that biofilms are impermeable, we investigated the mechanism and law of the influence of microbial growth non-uniformity on the permeability of porous media in the artificial recharge of groundwater. The relationship between the total permeability of porous media and that of cross section was developed and the coupled Lattice Boltzmann Method-Immersed Moving Boundary-Cellular
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Acropora coral pore morphology and its internal hydrodynamics Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-16 Yanmei Tian, Rongrong Tian, Xiangbo Gao, Liang Lei, S.A. Galindo-Torres, Ling Li
Pore networks are the pivotal channel for mass transport within Acropora corals, enabling coral’s reef-building capabilities in their marine ecosystems. The interactions of the coral with its surrounding water can be described as a complex hydrological system where the exchange of fluids transporting different agents is constantly occurring. Despite being of critical importance, there is a lack of
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Water vapor condensation in porous media: Effects of fracture, porosity, and flow rate revealed by rapid 4D neutron imaging Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-16 Arash Nemati, Bratislav Lukić, Alessandro Tengattini, Matthieu Briffaut, Philippe Séchet
This study investigates water vapor condensation processes in a fractured porous medium (sandstone), focusing on the effects of fracture conductivity, matrix porosity, and imposed flow rate of the vapor. Cylindrical samples of Fontainebleau sandstone were pre-fractured using the Brazilian splitting test and subjected to a constant vapor and air mixture flow rate. Rapid in situ neutron tomography, captured
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Modeling parametric uncertainty in PDEs models via Physics-Informed Neural Networks Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-11 Milad Panahi, Giovanni Michele Porta, Monica Riva, Alberto Guadagnini
We provide an approach enabling us to employ physics-informed neural networks (PINNs) to propagate parametric uncertainty to model outputs. Our approach is applicable to systems where observations are scarce (or even lacking), these being typical situations associated with subsurface water bodies. Our physics-informed neural network under uncertainty (PINN-UU) integrates the space–time domain across
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Experimental validation of an image-based dynamic pore-network model for spontaneous imbibition in sandstones Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-11 Xin Wang, Chaozhong Qin, Bo Guo, Sorin Pop, Jian Tian
Spontaneous imbibition (SI) in porous media driven by capillary action is pivotal to many subsurface and industrial applications. The pore-scale modeling has been playing a vital role in unraveling wetting dynamics in pore spaces, which will eventually determine flow parameters and behaviors. In this paper, we mainly contribute to validating an image-based dynamic pore-network model (PNM) for SI. For
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On transient qanat discharge in an unconfined aquifer underlain by a fractured aquifer Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-11 Mohammad M. Sedghi, Hongbin Zhan
Fractured aquifers sometimes underlie unconfined aquifers to form unconfined-fractured aquifer systems. The discharges of qanats constructed in such aquifer systems depend not only on the hydraulic parameters of the overlying aquifer but also on the hydraulic parameters of the underlying aquifer, where qanats can be approximated as constant-head slightly inclined horizontal wells. The available analytical
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Visualization experiment for characterizing the influence of an open fracture on CO2 behavior in fractured porous media Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-07 Seung-Wook Ha, Ji-Young Baek, In-Woo Park, Kang-Kun Lee
While gas behavior influenced by the intricate interplay between fractures and the surrounding porous media can create complex flow paths and distribution, there is a scarcity of experimental research focusing on the influence of a fracture on gas behavior due to the limitation of implementing an open structure within porous media. In this study, we have implemented transparent porous structures embedding
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An extension of the box method discrete fracture model (Box-DFM) to include low-permeable barriers with minimal additional degrees of freedom Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-05 Ziyao Xu, Dennis Gläser
The box method discrete fracture model (Box-DFM) is an important finite volume-based discrete fracture model (DFM) to simulate flows in fractured porous media. In this paper, we investigate a simple but effective extension of the box method discrete fracture model to include low-permeable barriers. The method remains identical to the traditional Box-DFM in the absence of barriers. The inclusion of
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A novel geometry-informed drag term formulation for pseudo-3D Stokes simulations with varying apertures Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-03 David Krach, Felix Weinhardt, Mingfeng Wang, Martin Schneider, Holger Class, Holger Steeb
Alterations in the pore morphology of porous materials cause changes to the characteristic hydraulic properties, which are mostly non-linear and inherently difficult to predetermine. Assuming the alterations are known with sufficient accuracy, the relation between the altered pore structure, measured in terms of porosity, and intrinsic permeability may be determined by simulations with enormous computational
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In search of non-stationary dependence between estuarine river discharge and storm surge based on large-scale climate teleconnections Adv. Water Resour. (IF 4.0) Pub Date : 2024-12-03 Georgios Boumis, Hamed R. Moftakhari, Danhyang Lee, Hamid Moradkhani
Compound floods may happen in low-lying estuarine environments when sea level above normal tide co-occurs with high river flow. Thus, comprehensive flood risk assessments for estuaries should not only account for the individual hazard arising from each environmental variable in isolation, but also for the case of bivariate hazard. Characterization of the dependence structure of the two flood drivers
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Phase diagram of invasion patterns in «capillary number, wetting angle, disorder» coordinates: A lattice Boltzmann study Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-29 T.R. Zakirov, A.S. Khayuzkin, A.N. Kolchugin, I.V. Malevin
Pore space heterogeneity, numerically described by the disorder parameter, is a factor that strongly influences the displacement mechanics in porous media. This paper presents a systematic study of the simultaneous effects of capillary number, wetting angle, and pore space disorder on the invasion patterns of immiscible displacement: viscous and capillary fingering, compact displacement, and various
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A Modeling framework for flocculated cohesive sediment transport in the current bottom boundary layer Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-28 Jorge A. Penaloza-Giraldo, Liangyi Yue, Tian-Jian Hsu, Bernhard Vowinckel, Andrew Manning, Eckart Meiburgc
Cohesive sediment transport, where its settling velocity is controlled by the flocculation process, is a crucial component in determining biochemical cycles, fate of pollutants, and morphodynamics in many aquatic ecosystems. In this study, a modeling framework is presented to investigate how flocculation influences cohesive sediment transport in the current bottom boundary layer in dilute conditions
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Numerical investigation of multiphase flow through self-affine rough fractures Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-28 Prakash Purswani, Javier E. Santos, Jeffrey D. Hyman, Eric J. Guiltinan
Multiphase flow through fractures has great significance in subsurface energy recovery and gas storage applications. Different fracture and flow properties affect flow through a fracture which is difficult to control in laboratory experiments. Here, we perform lattice Boltzmann simulations in an ensemble of synthetically generated fractures. Drainage simulations are performed at different capillary
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On the flow behaviour of unconfined dual porosity aquifers with sloping base Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-26 Konstantinos N. Moutsopoulos, John N.E. Papaspyros, Antonis D. Koussis, Frederick Delay, Marwan Fahs
The flow in an unconfined double-porosity aquifer with a sloping base is investigated and equations are developed for its description. In order to obtain a relatively simple description of the problem, similar assumptions as in Moutsopoulos (2021) have been adopted; the pressure in the unsaturated zone, especially in the fractures’ network, is considered to be atmospheric, and the Dupuit-Forchheimer
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Relating flow resistance to equivalent roughness Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-26 Octavia Crompton, Gabriel Katul, Sally E. Thompson
Describing flow resistance using the physical properties of an underlying surface is a recalcitrant problem in overland flow models. If discharge measurements are available, an equivalent roughness (e.g., Manning’s n) can be calibrated to represent the effects of surface properties within the domain with a single numerical value. Alternatively, the flow resistance can be estimated from discharge and
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Numerical analysis of solute transport and longitudinal dispersion coefficients in vegetated flow Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-21 Chenhao Zhang, Mingliang Zhang
Reasonable estimates of longitudinal dispersion coefficients are essential for predicting solute dispersion processes. However, the current knowledge of solute dispersion processes in vegetated waters is limited. In this work, we coupled a refined hydrodynamic model with scalar transport equations to simulate the flow field and dispersion process of solutes in water under the effect of vegetation.
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Thermodynamically consistent interfacial curvatures in real pore geometries: Implications for pore-scale modeling of two-phase displacement processes Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-19 Yanbin Gong, Bradley William McCaskill, Mohammad Sedghi, Mohammad Piri, Shehadeh Masalmeh
In conventional Pore-network Modeling (PNM) approaches, fluid flow and transport are solved in a network of pore elements with idealized geometries. Such simplification can lead to inaccurate predictions when the original pore space features complex geometries. To overcome this limitation, this study introduces a novel workflow that integrates four key components: (i) an enhanced pore network extraction
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Fully implicit bound-preserving discontinuous Galerkin algorithm with unstructured block preconditioners for multiphase flows in porous media Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-10 Jiali Tu, Haijian Yang, Rongliang Chen, Li Luo
Massively parallel simulation of multiphase flows in porous media is challenging due to the highly nonlinear governing equations with the complexity of various modeling features and the significant heterogeneity of material coefficients. In this paper, we introduce a fully implicit discontinuous Galerkin (DG) reservoir simulator designed for parallel computers to handle large-scale multiphase flow
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Unveiling air sparging analysis in flow cells through the continuum approach Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-06 Ilan Ben-Noah
We present various analytical solutions for a two-dimensional steady air source that demonstrate classical flow physics’ usefulness in air-sparging evaluation. These solutions capture different flow geometry and setup effects while offering accuracy, speed, and a deeper understanding of governing physics. Compared to empirical models, they excel with fewer physical parameters. We validate their accuracy
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Sub-daily precipitation returns levels in ungauged locations: Added value of combining observations with convection permitting simulations Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-04 Giuseppe Formetta, Eleonora Dallan, Marco Borga, Francesco Marra
Extreme rainfall events trigger natural hazards, including floods and debris flows, posing serious threats to society and the economy. Accurately quantifying extreme rainfall return levels in ungauged locations is crucial for improving flood protection infrastructure and mitigating water-related risks. This paper quantifies the added value of combining rainfall observations with Convection Permitting
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Optimizing parameter estimation in hydrological models with convolutional neural network guided dynamically dimensioned search approach Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-01 Ashlin Ann Alexander, D. Nagesh Kumar
Hydrological model calibration plays a crucial role in estimating optimal parameters for accurate simulation. Estimation of parameters is inevitable in hydrological modeling due to the challenge of directly measuring them, as most parameters are conceptual descriptions of physical processes. Modelers commonly employ optimization algorithms for calibrating hydrological models. However, these algorithms
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Towards improved understanding of spontaneous imbibition into dry porous media using pore-scale direct numerical simulations Adv. Water Resour. (IF 4.0) Pub Date : 2024-11-01 Luka Malenica, Zhidong Zhang, Ueli Angst
Traditional approaches to mathematically describe spontaneous imbibition are usually based on either macro-scale models, such as Richards equation, or simplified pore-scale models, such as the bundle of capillary tubes (BCTM) or pore-network modeling (PNM). It is well known that such models cannot provide full microscopic details of the multiphase flow processes and that many pore-scale mechanisms
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Boosting the reconstruction performance of 3D Multi-porous media using double generative adversarial networks Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-29 Xiaoxiang Yin, Mingliang Gao, Ai Luo, Geling Xu
With the continuous improvement of mathematical modeling technology, reconstructing the three-dimensional structure of media from two-dimensional reference images has become an important research method for the three-dimensional modeling of multi-porous media. Deep-learning-based methods are currently popular and form the focus of this research field. However, the performance of deep learning in reconstructing
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An extended two-parameter mixed-dimensional model of fractured porous media incorporating entrance flow and boundary-layer transition effects Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-22 Marcio A. Murad, Luciane A. Schuh, Igor Mozolevski, Josue Barroso
We develop an enhanced reduced model for single-phase flow in fractured porous media capable of incorporating more realistic interface conditions at the fracture terminations. In addition to the traditional dimensional model reduction, where the elements of the discrete fracture network are treated as lower dimensional manifolds embedded in the porous matrix, we explore the microscale behavior of the
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Computationally efficient and error aware surrogate construction for numerical solutions of subsurface flow through porous media Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-19 Aleksei G. Sorokin, Aleksandra Pachalieva, Daniel O’Malley, James M. Hyman, Fred J. Hickernell, Nicolas W. Hengartner
Limiting the injection rate to restrict the pressure below a threshold at a critical location can be an important goal of simulations that model the subsurface pressure between injection and extraction wells. The pressure is approximated by the solution of Darcy’s partial differential equation for a given permeability field. The subsurface permeability is modeled as a random field since it is known
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A physics-constraint neural network for CO2 storage in deep saline aquifers during injection and post-injection periods Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-18 Mengjie Zhao, Yuhang Wang, Marc Gerritsma, Hadi Hajibeygi
CO2 capture and storage is a viable solution in the effort to mitigate global climate change. Deep saline aquifers, in particular, have emerged as promising storage options, owing to their vast capacity and widespread distribution. However, the task of proficiently monitoring and simulating CO2 behavior within these formations poses significant challenges. To address this, we introduce the physics-constraint
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Multi-temporal drought rarity curves—A yearly classification of meteorological drought severity in France Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-15 Juliette Blanchet, Baptiste Ainési, Sandra Rome, Jean-Dominique Creutin
Droughts are recurrent phenomena that present a large variety of space and time patterns making rather difficult the assessment of their rarity and the comparison between events.
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Laboratory and numerical investigations on land-sourced solute transport in coastal fractured aquifers Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-12 Yipeng Zeng, Yifan Xie, Yu Ye, Chengji Shen, Tongchao Nan, Chunhui Lu
Land-based pollutants threaten coastal aquifers, highlighting the need to protect groundwater and nearshore marine ecosystems. While aquifer heterogeneity has been recognized as a significant factor affecting solute behavior, the impact of fractures on land-sourced solute transport in coastal aquifers remains unclear. This study attempted to address this issue through laboratory experiments and discrete
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Semi-implicit schemes for modeling water flow and solute transport in unsaturated soils Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-11 Hamza Kamil, Abdelaziz Beljadid, Azzeddine Soulaïmani, Yves Bourgault
The coupled model of water flow and solute transport in unsaturated soils is addressed in this study. Building upon previous research findings by Keita, Beljadid, and Bourgault, we investigate a class of second-order time-stepping techniques where two free parameters are introduced, to identify the most stable and accurate scheme. The spatial discretization of the Richards equation is accomplished
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Dynamic mode decomposition of GRACE satellite data Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-11 G. Libero, V. Ciriello, D.M. Tartakovsky
Advancements in satellite technology yield environmental data with ever improving spatial coverage and temporal resolution. This necessitates the development of techniques to discern actionable information from large amounts of such data. We explore the potential of dynamic mode decomposition (DMD) to discover the dynamics of spatially correlated structures present in global-scale data, specifically
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Deep learning-based geological parameterization for history matching CO2 plume migration in complex aquifers Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-11 Li Feng, Shaoxing Mo, Alexander Y. Sun, Dexi Wang, Zhengmao Yang, Yuhan Chen, Haiou Wang, Jichun Wu, Xiaoqing Shi
History matching is crucial for reliable numerical simulation of geological carbon storage (GCS) in deep subsurface aquifers. This study focuses on inferring highly complex aquifer permeability fields with multi- and intra-facies heterogeneity to improve the characterization of CO2 plume migration. We propose a deep learning (DL)-based parameterization strategy combined with the ensemble smoother with
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Why do published models for fluvial and estuarine morphodynamics use unrealistic representations of the effects of transverse bed slopes? Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-11 Michael Tritthart, Davide Vanzo, Victor Chavarrías, Annunziato Siviglia, Kees Sloff, Erik Mosselman
The sediment transport direction is affected by the bed slope. This effect is of crucial importance for two- and three-dimensional modelling of the interaction between the flow of water and the alluvial bed. It is not uncommon to find applications of numerical morphodynamic models in the literature that exaggerate the effects of transverse bed slopes on sediment transport compared to results from laboratory
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Spontaneous imbibition of unsaturated sandstone under different vertical temperature gradients: neutron radiography experiments and dynamic models Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-09 Jinbao Guo, Yixin Zhao, Linfeng He, Xiaodong Guo, Hua Shen, Sen Gao
To elucidate the imbibition behavior of water in complex temperature and stress environments, spontaneous imbibition experiments were conducted on unsaturated matrix sandstones at different vertical temperature gradients by neutron radiography technology. Additionally, corresponding dynamic models of water imbibition in porous media were established. The research results reveal the phased characteristics
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Upscaling transport in heterogeneous media featuring local-scale dispersion: Flow channeling, macro-retardation and parameter prediction Adv. Water Resour. (IF 4.0) Pub Date : 2024-10-05 Lian Zhou, Scott K. Hansen
Many theoretical treatments of transport in heterogeneous Darcy flows consider advection only. When local-scale dispersion is neglected, flux weighting persists over time; mean Lagrangian and Eulerian flow velocity distributions relate simply to each other and to the variance of the underlying hydraulic conductivity field. Local-scale dispersion complicates this relationship, potentially causing initially
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Diffusiophoresis of colloids in partially-saturated porous media Adv. Water Resour. (IF 4.0) Pub Date : 2024-09-30 Mamta Jotkar, Ilan Ben-Noah, Juan J. Hidalgo, Marco Dentz
It is known that structural heterogeneity induced by the distribution of the water and air phases creates complex flow patterns with a broad distribution of flow velocities, which in turn control key aspects of transport including arrival and residence times, dispersion and spatial distributions of dissolved salts and suspended colloidal particles. Stagnation zones serve as hot spots where colloidal
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A generalized kinetic theory of Ostwald ripening in porous media Adv. Water Resour. (IF 4.0) Pub Date : 2024-09-25 Nicolas Bueno, Luis Ayala, Yashar Mehmani
Partially miscible bubbles (e.g., CO2) trapped inside a porous medium and surrounded by a wetting phase (e.g., water) occur in a number of applications including underground hydrogen storage, geologic carbon sequestration, and the operation of electrochemcial devices such as fuel cells and electrolyzers. Such bubbles evolve due to a process called Ostwald ripening that is driven by differences in their
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Investigating supercritical flow characteristics and movement of sediment particles in a narrow channel bend using PTV and video footage Adv. Water Resour. (IF 4.0) Pub Date : 2024-09-22 Subhojit Kadia, I.A. Sofia Larsson, Mats Billstein, Nils Rüther, Leif Lia, Elena Pummer
This experimental study investigates the cause of nonuniform invert abrasion observed at sediment bypass tunnel (SBT) bends by examining the variations in velocity distributions, turbulence properties, bed shear stress, and bulk sediment movements under three supercritical bend flow conditions, detailed investigation of such flow is scarce. Using a laboratory-scaled model (1:22) of the downstream bend
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Dynamics of bedload transport under run-up wave by gravel resolved scheme based on 3D DEM-MPS coupling Adv. Water Resour. (IF 4.0) Pub Date : 2024-09-21 Takumi Tazaki, Eiji Harada, Hitoshi Gotoh
Accurate predictions of morphological changes in swash zones require a detailed understanding of sediment transport mechanisms, which are strongly related to bore-induced vortices and turbulence, surface-subsurface interactions, namely, infiltrate/exfiltrate flow, and swash-swash interactions. However, obtaining experimental or field measurements of instantaneous velocity and sediment flux is challenging
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Density-driven free convection in heterogeneous aquifers with connectivity features Adv. Water Resour. (IF 4.0) Pub Date : 2024-09-20 Hongkai Li, Lei Zhang, Yu Ye, Chunhui Lu
Free convection usually happens in variable-density groundwater flow systems, and it favors contaminant transport by enlarging length scales and shortening timescales compared to advection and diffusion/dispersion alone. Previous studies have demonstrated that heterogeneity with multi-variate Gaussian distribution for logarithmic permeabilities (log10k) plays an important role in the onset, growth
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Nanoparticle transport in partially saturated porous media: Attachment at fluid interfaces Adv. Water Resour. (IF 4.0) Pub Date : 2024-09-19 Youssra Rahham, Stephen Dauphinais, Jeff T. Gostick, Marios A. Ioannidis
Like the solid-water interface (SWI), air-water and oil-water interfaces (AWI and OWI) also act as collectors for nano-sized particles in porous media. The attachment of hydrophobic nanoparticles, which is often favorable and irreversible, is of particular interest because the transport and retention of such particles is closely linked to the fate of nanoplastics in unsaturated subsurface environments