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How Does Phase Behavior of Surfactant/Fluid/Fluid Systems Affect Fluid-Fluid Displacement in Porous Media? Adv. Water Resour. (IF 5.361) Pub Date : 2022-08-13 Weipeng Yang, Guoyu Chu, Yujing Du, Ke Xu, Erdong Yao, Tianbo Liang, Bing Wei, Haiyang Yu, Jian Hou, Jun Lu
Surfactant flooding is widely used in subsurface applications where high displacement efficiency is needed, such as nonaqueous phase liquid (NAPL) remediation and enhanced oil recovery (EOR). For surfactant/water/oil systems, the partitioning of surfactants in each phase is controlled by external factors, such as salinity. The third phase, microemulsions, which locates between water and oil, can be
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Grid edge classification method to enhance levee resolution in dual-grid flood inundation models Adv. Water Resour. (IF 5.361) Pub Date : 2022-08-12 Daniel Kahl, Jochen E. Schubert, Ariane Jong-Levinger, Brett F. Sanders
Dual-grid models address the computational bottlenecks of large-scale (>103 km2) urban flood modeling with solution updates on a coarse grid that are informed by topographic data on a fine grid. However, dual-grid models may poorly resolve levees, leading to loss of accuracy. Here we present a grid edge classification method whereby specific edges of the coarse grid are flagged to gather nearby topographic
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A new analytical model for transport of multiple contaminants considering remediation of both NAPL source and downgradient contaminant plume in groundwater Adv. Water Resour. (IF 5.361) Pub Date : 2022-08-06 Heejun Suk, Kai-Wen Zheng, Zhong-Yi Liao, Ching-Ping Liang, Sheng-Wei Wang, Jui-Sheng Chen
The contamination of groundwater aquifers by chlorinated solvents is a water-resource issue of great importance worldwide. Such contaminants are difficult to treat because they are often released as dense non-aqueous phase liquids (DNAPLs). Research shows that the application of remediation technologies to both the NAPL source and dissolved plume can lead to more efficient remediation, rather than
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Newton trust-region methods with primary variable switching for simulating high temperature multiphase porous media flow Adv. Water Resour. (IF 5.361) Pub Date : 2022-08-09 Heeho D. Park, Matthew Paul, Glenn E. Hammond, Albert J. Valocchi
Coupling multiphase flow with energy transport due to high temperature heat sources introduces significant new challenges since boiling and condensation processes can lead to dry-out conditions with subsequent re-wetting. The transition between two-phase and single-phase behavior can require changes to the primary dependent variables adding discontinuities as well as extending constitutive nonlinear
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On the localization of chemical reactions in multicontinuum media Adv. Water Resour. (IF 5.361) Pub Date : 2022-07-28 Jingjing Wang, Jesus Carrera, Maarten W. Saaltink, Cristina Valhondo
Reactive transport (RT) through heterogeneous media, may cause chemical heterogeneity if water flux is slow through portions of the medium. In such cases, chemical localization (i.e., the occurrence of reactions that would not occur in well mixed media) may develop, which is especially relevant for biochemical reactions occurring in biofilms. The objective of this work is to study the conditions for
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New semi-analytical solutions to the radial advection-dispersion equation for solute transport in a transient divergent radial flow Adv. Water Resour. (IF 5.361) Pub Date : 2022-07-21 Heejun Suk, Jui-Sheng Chen, Weon Shik Han, Eungyu Park
Solute transport through radial advection–dispersion is a common phenomenon in many applications, such as aquifer decontamination, heat exchange for geothermal exploration, and tracer testing. Numerous analytical solutions to the problem of tracer testing in a radially divergent flow field are available for fitting breakthrough curves. However, all of these analytical solutions assume non-uniform flow
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Effect of time-varying wave conditions on the fate of nitrogen in a freshwater unconfined nearshore aquifer Adv. Water Resour. (IF 5.361) Pub Date : 2022-07-13 Sabina Rakhimbekova, Ming Zhi Wu, Vincent Post, Clare E. Robinson
Coastal forcing including waves lead to complex and dynamic mixing between discharging groundwater and recirculating coastal water in permeable unconfined nearshore aquifers. This mixing can drive biogeochemical transformations that affect the fate of pollutants in nearshore aquifers and their ultimate discharge to coastal waters. The objective of this study was to examine the effect of time-varying
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Developing a generic data-driven reservoir operation model Adv. Water Resour. (IF 5.361) Pub Date : 2022-07-16 Yanan Chen, Donghui Li, Qiankun Zhao, Ximing Cai
This study presents a generic data-driven reservoir operation model (GDROM). The hidden Markov-decision tree (HM-DT) is applied to deriving representative operation modules for a reservoir; a classification and regression tree (CART) algorithm is used to identify the application and transition conditions for the operation modules. These two procedures result in the GDROM that is featured by 1) using
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Deep learning to estimate permeability using geophysical data Adv. Water Resour. (IF 5.361) Pub Date : 2022-07-15 M.K. Mudunuru, E.L.D. Cromwell, H. Wang, X. Chen
Time-lapse electrical resistivity tomography (ERT) is a popular geophysical method to estimate three-dimensional (3D) permeability fields from electrical potential difference measurements. Traditional inversion and data assimilation methods are used to ingest this ERT data into hydrogeophysical models to estimate permeability. Due to ill-posedness and the curse of dimensionality, existing inversion
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Global random walk solvers for reactive transport and biodegradation processes in heterogeneous porous media Adv. Water Resour. (IF 5.361) Pub Date : 2022-07-08 Nicolae Suciu, Florin A. Radu
Flow and multicomponent reactive transport in saturated/unsaturated porous media are modeled by ensembles of computational particles moving on regular lattices according to specific random walk rules. The occupation number of the lattice sites is updated with a global random walk (GRW) procedure which spreads the particles from a lattice site with computational costs comparable to those for a single
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Upscaled models for time-varying solute transport: Transient spatial-Markov dynamics Adv. Water Resour. (IF 5.361) Pub Date : 2022-07-08 Nicholas B. Engdahl, Tomás Aquino
Correlated velocity models (CVMs) have proven themselves to be effective tools for describing a wide range of solute transport behaviors in heterogeneous porous media. In particular, spatial Markov models (SMMs) are a class of CVMs where subsequent Lagrangian velocities along transport trajectories depend only on the current velocity, and not on past history. Such models provide a powerful tool for
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A sequential decision-making framework with uncertainty quantification for groundwater management Adv. Water Resour. (IF 5.361) Pub Date : 2022-07-02 Yizheng Wang, Markus Zechner, John Michael Mern, Mykel J. Kochenderfer, Jef Karel Caers
Groundwater contamination causes significant groundwater supply risks that severely affect humans and livestock, especially in the era of climate change. Consequently, the need to develop and optimize remediation strategies such as pump and treat is indispensable. An effective and efficient strategy can reduce the spread of contaminants and cost of clean-up. However, developing such a strategy is challenging
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Numerical analysis of midwinter infiltration along the soil-rock interface: A pathway for enhanced bedrock recharge Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-26 Stephanie N. Wright, Kent S. Novakowski
Shallow bedrock aquifers are prevalent across the Northern Hemisphere and can be the primary source of freshwater for many communities. Cryospheric impacts from climate warming are particularly concerning for bedrock aquifers where recharge is dominated by winter precipitation. For the management and protection of fractured rock groundwater supplies, the processes influencing infiltration and recharge
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Inversion method of hydraulic conductivity for steady-state problem based on reduced-order model constructed by improved greedy sampling method Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-27 Wuwen Qian, Junrui Chai, Xinyu Zhao, JingTai Niu, Fang Xiao, Zhiping Deng
To solve the time-consuming parameter inversion problem based on swarm evolution algorithm, this study proposes an improved greedy sampling method (GSM) (IGSM) based on model reduction technology to rapidly estimate the hydraulic conductivity of steady-state seepage problem. Different from the traditional GSM, IGSM neither needs to estimate the posterior error bound of the reduced-order model (ROM)
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Water-level recession characteristics in isolated pools within non-perennial streams Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-30 Songyan Yu, Ryan M. Burrows, Margaret Shanafield, Mark J. Kennard
Persistent surface water pools within non-perennial streams provide critical refuges for freshwater species by facilitating their survival during extended dry periods. However, our understanding of how pool water levels recede is limited, hindering our ability to quantify and predict aquatic refuge persistence. We characterise variations in water-level recession rates based on one year of water-level
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A framework for upscaling and modelling fluid flow for discrete fractures using conditional generative adversarial networks Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-28 Carlos A.S. Ferreira, Teeratorn Kadeethum, Nikolaos Bouklas, Hamidreza M. Nick
Scaling up highly heterogeneous aperture distributions of fractures into equivalent permeability tensors enables a substantial reduction in the computational cost of simulating fluid flow in fractured porous media by allowing the employment of coarser grids while keeping the accuracy of an explicit model. This work proposes the adaptation and application of conditional generative adversarial networks
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A robust fully mixed finite element model for flow and transport in unsaturated fractured porous media Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-25 Anis Younes, Hussein Hoteit, Rainer Helmig, Marwan Fahs
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 exchanges. The model is based on the discrete fracture matrix (DFM) approach and assumes cross-flow equilibrium in the fractures. The MFE method is employed for the spatial discretization of both flow and transport on
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Mapping storm spatial profiles for flood impact assessments Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-25 Nadav Peleg, Nikolina Ban, Michael J. Gibson, Albert S. Chen, Athanasios Paschalis, Paolo Burlando, João P. Leitão
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Living on the edge: How traits of ecosystem engineers drive bio-physical interactions at coastal wetland edges Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-17 Gillis LG, M Maza, J Garcia-Maribona, JL Lara, T Suzuki, M Argemi Cierco, M Paul, AM Folkard, T Balke
Salt marshes and mangrove forests provide critical ecosystem services such as reduced sediment erosion and increased hydrodynamic buffering. Sediment transport and hydrodynamics can be influenced by specific functional traits of the plants (for example, flexibility vs. rigidity) and community traits (for example, spatial density). While there is a growing body of literature on plant trait and hydrodynamic
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Hydrogeological multiple-point statistics inversion by adaptive sequential Monte Carlo Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-16 Macarena Amaya, Niklas Linde, Eric Laloy
For strongly non-linear and high-dimensional inverse problems, Markov chain Monte Carlo (MCMC) methods may fail to properly explore the posterior probability density function (PDF) given a realistic computational budget and are generally poorly amenable to parallelization. Particle methods approximate the posterior PDF using the states and weights of a population of evolving particles and they are
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Approximate solution to the generalized radial Boussinesq equation Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-11 Phillip A. Pratt, Aleksey S. Telyakovskiy
This paper presents a method for constructing approximate semi-analytical solutions for the radially symmetric generalized Boussinesq equation, also known as the porous medium equation (PME). This work is a further extension of analysis done by Telyakovskiy et al. (2016), that studied water injection governed by the Boussinesq equation into an unconfined initially dry aquifer. The newly derived approximate
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New formulation of the two-dimensional steep-slope shallow water equations. Part I: Theory and analysis Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-09 Andrea Maranzoni, Massimo Tomirotti
Two-dimensional (2D) depth-averaged shallow water equations (SWE) are widely used to model unsteady free surface flows, such as flooding processes, including those due to dam-break or levee breach. However, the basic hypothesis of small bottom slopes may be far from satisfied in certain practical circumstances, both locally at geometric singularities and even in wide portions of the floodable area
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A new two-phase shallow water hydro-sediment-morphodynamic model based on the HLLC solver and the hybrid LTS/GMaTS approach Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-09 Peng Hu, Binghan Lyu, Ji Li, Mengzhe Sun, Wei Li, Zhixian Cao
In this paper, we present a new computationally-efficient and high-resolution depth-averaged two-phase flow model for hydro-sediment-morphydynamic processes, featuring an advance over existing models in terms of accuracy and efficiency of numerical solution. Under the framework of finite volume method (FVM) on unstructured grids, the Harten-Lax-van Leer-Contact (HLLC) approximate Riemann solver is
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Effects of initial and boundary conditions on gravel-bed river morphology Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-09 Sandesh Paudel, Umesh Singh, Alessandra Crosato, Mário J. Franca
Assuming that the equilibrium geometry of river channels does not depend on their initial state but solely on boundary conditions, several formulas have been derived that relate the channel depth and width to the river bankfull discharge and bed material. However, due to the existence of a threshold for sediment motion and the strong non-linearity between sediment transport and flow rate, this assumption
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Improved progressive optimality algorithm and its application to determination of optimal release trajectory of long-term power generation operation of cascade reservoirs Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-09 Jia Chen, Xinlong Qi, Gengfeng Qiu, Lei Chen
Dynamic programming (DP) is an effective method for solving multi-stage decision-making problems and has been extensively applied to the optimization of reservoir operations. However, the method is limited by the dimensionality problem; hence, it cannot be directly applied to optimizing the operations of a reservoir system with more than three reservoirs at current computing power. The progressive
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Hydrological frequency analysis under nonstationarity using the Metastatistical approach and its simplified version Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-03 Cuauhtémoc Tonatiuh Vidrio-Sahagún, Jianxun He
The implementation of nonstationary hydrological frequency analysis (NS-HFA) has often been hampered by the relatively short datasets and the resulting high uncertainty. Most recently, the non-asymptotic Metastatistical extreme value (MEV) and simplified MEV (SMEV) distributions, which rely on the ordinary events rather than the extremes only, have attracted attention in the HFA of both rainfall and
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GW-PINN: A deep learning algorithm for solving groundwater flow equations Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-31 Xiaoping Zhang, Yan Zhu, Jing Wang, Lili Ju, Yingzhi Qian, Ming Ye, Jinzhong Yang
Machine learning methods provide new perspective for more convenient and efficient prediction of groundwater flow. In this study, a deep learning method “GW-PINN” without labeled data for solving groundwater flow equations with wells was proposed. GW-PINN takes the physics inform neural network (PINN) as the backbone and uses either the hard or soft constraint in the loss function for training. A locally
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A global assessment of change in flood volume with surface air temperature Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-29 Wei He, Seokhyeon Kim, Conrad Wasko, Ashish Sharma
Climate change is expected to have a significant impact on water security, with higher temperatures causing both enhanced droughts and flood extremes. Here, using global flow data from non-urban catchments, we investigate the sensitivity of flood volume to changes in concurrent surface air temperature. We find most of the world shows decreases in flood volumes with increasing temperature. To understand
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Development of a numerical model for braided river morphology and vegetation evolution with application to the Lower Waitaki River (Aotearoa – New Zealand) Adv. Water Resour. (IF 5.361) Pub Date : 2022-06-03 Guglielmo Stecca, Davide Fedrizzi, Richard Measures, D. Murray Hicks, Jo Hoyle, Guido Zolezzi
In this paper we develop a two-dimensional modelling framework suitable to study the morphological evolution of vegetated braided rivers. The mathematical model features a unisize-sediment morphological model, which includes accounting for bank erosion, and a vegetation model. While these model components had already appeared separately in different contexts, here we improve and tailor them for modelling
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Merge pore clusters: A novel method to construct pore networks and predict permeability from 2D rock images Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-30 Chenhui Wang, Kejian Wu, Gilbert G. Scott, Ailin Jia
We propose a novel method to predict fluid flow properties of reservoir rocks from 2D rock images by connecting pore clusters based on their intrinsic properties. Spatial proximity and connecting large clusters with priority are the two basic connecting principles of this method. A few methods from complex networks were used to analyze the topology and connectivity of the connected pore networks, resulting
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Coupling effects of tide and salting-out on perfluorooctane sulfonate (PFOS) transport and adsorption in a coastal aquifer Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-27 Congrui Li, Chenming Zhang, Badin Gibbes, Tao Wang, David Lockington
The adsorption of perfluorooctane sulfonate (PFOS) on sediments is thought to be enhanced by the ‘salting-out effect’ (SOE), which reduces contaminant solubility as water salinity increases. The process of salting-out has been observed for PFOS in surface estuaries and likely operates in ‘subterranean estuaries’, where tide-induced groundwater circulation creates a dynamic saltwater-freshwater mixing
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Morphodynamic modeling and morphological upscaling in a fine sediment system Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-27 Rooni Mathew, Johan C. Winterwerp
Sediment mobility and memory effects distinguish transport and morphodynamics in fine sediment settings from sandy settings. This paper focuses on the morphodynamic modeling of fine sediment systems, and an adaptation of modeling procedures more commonly used in sand-dominated systems. An extensive dataset of short-term transport and morphological trends along with ancillary data is used to support
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Improved lattice Boltzmann method to simulate liquid flow in nanoporous media: Coupling molecular dynamics simulations and theoretical model Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-25 Han Wang, Yuliang Su, Wendong Wang
Understanding the mechanisms of nanoconfined liquid flow in nanoporous media is crucial for many scientific and engineering applications such as enhanced shale oil recovery and water purification. However, due to molecular interactions which cause slip boundary and heterogeneous viscosity/density in nanoscale space, the conventional continuity equations are no longer applicable. Besides, the pore size
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Role of heterogeneous surface wettability on dynamic immiscible displacement, capillary pressure, and relative permeability in a CO2-water-rock system Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-20 Ruichang Guo, Laura Dalton, Dustin Crandall, James McClure, Hongsheng Wang, Zhe Li, Cheng Chen
Surface wettability is one of the major factors that regulate immiscible fluid displacement in porous media. However, the role of pore-scale wettability heterogeneity on dynamic immiscible displacement is rarely investigated. This study investigated the impact of pore-scale wettability heterogeneity on immiscible two-fluid displacement and the resulting macroscopic constitutive relations, including
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Modeling and monitoring of foam propagation in highly permeable porous media under lateral water flow Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-19 Hossein Davarzani, Romain Aranda, Stéfan Colombano, Fabien Laurent, Henri Bertin
Foam injection is a promising option for soil remediation applications. However, predicting how it will propagate in highly permeable aquifers under groundwater flow is challenging. Here, we have studied pressure and saturation variations during foam propagation. A 2D tank packed with 1 mm glass beads was used to study foam injection in highly permeable porous media under lateral flow. Specifically
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Microfluidics-based analysis of dynamic contact angles relevant for underground hydrogen storage Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-13 Willemijn van Rooijen, Leila Hashemi, Maartje Boon, Rouhi Farajzadeh, Hadi Hajibeygi
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Capillary equilibration of trapped ganglia in porous media: A pore-network modeling approach Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-18 Yashar Mehmani, Ke Xu
Ganglia, or bubbles, trapped by capillary forces inside porous materials occur in a wide range of subsurface and manufacturing applications. In geologic CO2 storage, ganglia are desired as they render the injected CO2 hydrodynamically immobile. But they may evolve by dissolution or mass exchange across the brine, called ripening. In fuel cells and electrolyzers, water/oxygen ganglia must be removed
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Computational modeling of coupled waves and vegetation stem dynamics in highly flexible submerged meadows Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-14 R. Familkhalili, N. Tahvildari
In this study, we have developed a two-way fully coupled hydrodynamic-vegetation model that includes a spatially and temporally variable drag coefficient of flexible submerged aquatic vegetation (SAV). The developed model consists of a nonhydrostatic wave model (NHWAVE) that solves the Navier-Stokes equations and a numerical model for vegetation stem dynamics that solves the instantaneous forces applied
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Pore-pressure wave and diffusion induced by fluid-mass sources in partially saturated porous media Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-08 Yu Zhang, Ping Ping
The dynamic and quasi-static spatiotemporal responses of pore water induced by fluid-mass sources in unsaturated porous media are determined and compared. An explicit fundamental solution for pore water pressure is derived using the known Green's function of dynamic poroelasticity. Based on the order of the low-frequency approximations for the source impulsive time function, different physical regimes
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Where to drill next? A dual-weighted approach to adaptive optimal design of groundwater surveys Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-11 Mikkel B. Lykkegaard, Tim J. Dodwell
We present a novel approach to adaptive optimal design of groundwater surveys – a methodology for choosing the location of the next monitoring well. Our dual-weighted approach borrows ideas from Bayesian Optimisation and goal-oriented error estimation to propose the next monitoring well, given that some data is already available from existing wells. Our method is distinct from other optimal design
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Simultaneous velocity–density measurements of downslope density clouds Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-07 M.E. Negretti, A. Martin, F. Naaim-Bouvet
We present results from laboratory experiments of the downslope propagation of a finite volume released gravity current by means of combined PIV/PLIF measurements. The experimental data were used to estimate the global characteristics of the current, such as the propagation speed, the lateral surface and the buoyancy, revealing that thermal theory is a robust model that can predict such quantities
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Adaptive conservative time integration for transport in fractured porous media Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-05 Michael Liem, Stephan Matthai, Patrick Jenny
The time step of an explicit time integration scheme for solving time-dependent hyperbolic partial differential equations in a finite volume method (FVM) framework is restricted by the Courant-Friedrichs-Levy (CFL) criterion. Conventional time stepping integrates all grid cells with the same time step. This causes unnecessary computational costs when wave speeds and/or grid spacing vary considerably
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A semi-analytical solution of Richards Equation for two-layered one-dimensional soil Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-06 T. Aryeni, V. Ginting
A semi-analytical solution of the Richards Equation posed on a two-layered one-dimensional soil supplied with various boundary conditions is derived under a constraint that the constitutive relations are exponentially dependent on the pressure head. It allows for a transformation of the Richards Equation into a linear parabolic partial differential equation that governs a spatial–temporal function
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Modeling imbibition coreflooding in heterogeneous cores with sub-core scale hysteresis Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-04 Evans Anto-Darkwah, Avinoam Rabinovich
Coreflooding experiments with computed tomography imaging are becoming common practice. They allow to investigate the sub-core scale properties such as relative permeability (kr) and capillary pressure (Pc), and to construct multiphase flow models that not only capture the core average flow, but also the flow on the sub-core (millimeter) scale. This work presents two-phase flow models of imbibition
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A comparative study on the accuracy and conservation properties of the SPH method for fluid flow interaction with porous media Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-04 Ehsan Kazemi, Min Luo
Smoothed Particle Hydrodynamics (SPH) has successfully been employed in the last decade for macroscopic simulation of fluid flow in porous media. However, there are still certain inconsistencies in the existing models with regard to both the definition of the governing equations and the adopted numerical treatments. In this study, thus, in order for a comparative investigation of the existing practices
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Characterization of groundwater contamination: A transformer-based deep learning model Adv. Water Resour. (IF 5.361) Pub Date : 2022-05-04 Tao Bai, Pejman Tahmasebi
Identification of groundwater contaminant sources in a highly-heterogenous geosystems results in a high-dimensional inverse problem and is often solved based on a surrogate model to alleviate the computational burden. Surrogate modeling through deep learning has a great potential for learning complex nonlinear relationships between model inputs and outputs. Most of the developed surrogates, however
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Time-lapse imaging of flow instability and rock heterogeneity impacts on CO2 plume migration in meter long sandstone cores Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-26 Mojtaba Seyyedi, Michael Benedict Clennell, Samuel J. Jackson
Our understanding and modelling of flow instabilities (e.g. viscous, gravitational) in the presence of geological heterogeneity is limited by a lack of experimental observations at relevant scales in consolidated media. Typically, small sample sizes (<50 mm diameter) restrict the scale of heterogeneity, and the development of unstable fingers may be damped by the sample boundaries. Furthermore, there
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Generalized network modelling of two-phase flow in a water-wet and mixed-wet reservoir sandstone: Uncertainty and validation with experimental data Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-22 Ali Q. Raeini, Luke M. Giudici, Martin J. Blunt, Branko Bijeljic
We use a generalized pore network model in combination with image-based experiments to understand the parameters that control upscaled flow properties. The study is focued on water-flooding through a reservoir sandstone under water-wet and mixed-wet conditions. A set of sensitivity studies is presented to quantify the role of wettability, pore geometry, initial and boundary conditions as well as a
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Enhanced solute transport in porous media due to pH-dependent adsorption and transverse dispersion Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-21 Dong Zhang, Ting Liu, Valentina Prigiobbe
The process of pH-dependent adsorption/desorption controls the transport of solutes in reactive porous media, the greater the adsorption the slower the solute migration. Earlier works show that in the presence of longitudinal hydrodynamic dispersion and pH-dependent adsorption, a fast solute transport phenomenon may arise. However, the effect of transverse dispersion on this fast transport phenomenon
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Multi-model evaluation of catchment- and global-scale hydrological model simulations of drought characteristics across eight large river catchments Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-21 Amit Kumar, Simon N. Gosling, Matthew F. Johnson, Matthew D. Jones, Jamal Zaherpour, Rohini Kumar, Guoyong Leng, Hannes Müller Schmied, Jenny Kupzig, Lutz Breuer, Naota Hanasaki, Qiuhong Tang, Sebastian Ostberg, Tobias Stacke, Yadu Pokhrel, Yoshihide Wada, Yoshimitsu Masaki
Although global- and catchment-scale hydrological models are often shown to accurately simulate long-term runoff time-series, far less is known about their suitability for capturing hydrological extremes, such as droughts. Here we evaluated simulations of hydrological droughts from nine catchment scale hydrological models (CHMs) and eight global scale hydrological models (GHMs) for eight large catchments:
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Groundwater flow near a recirculation well with mixed-type boundary condition along wellbore in confined, unconfined, leaky, or reservoir-covered aquifers Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-21 Tomas Perina
Vertical recirculation wells used for remediation or heat recovery induce drawdown distribution that varies for confined, unconfined, leaky, and reservoir-covered aquifers. A recirculation well with arbitrary arrangement of extraction and injection screen intervals is simulated with the general well function of Perina and Lee (2006) and Perina (2014) after a minor modification. Distribution of radial
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Modelling saline intrusion using dynamic mesh optimization with parallel processing Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-20 A. Hamzehloo, M.L. Bahlali, P. Salinas, C. Jacquemyn, C.C. Pain, A.P. Butler, M.D. Jackson
Saline intrusion (SI) in coastal aquifers is a global problem with the potential to contaminate groundwater used by over a billion people. Numerical modelling of SI in coastal aquifers is a key tool for risk assessment, aquifer management and resource regulation, but is extremely challenging because the mixing zone across the saline front is often very narrow, extending over metres or 10’s metres,
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A phase field model for partially saturated geomaterials describing fluid–fluid displacements, Part II: Stability analysis and two-dimensional simulations Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-19 Siddhartha H. Ommi, Giulio Sciarra, Panagiotis Kotronis
Flows involving immiscible displacement of one fluid by another in a porous media are known to destabilize and form fluid fingering. When the non-wetting fluid is a highly mobile gas (air) and the wetting fluid is an in-compressible liquid (water) the classical macroscopic theory is unable to describe the fingered flow. In Part I of this study we have introduced a model that interprets the mixture
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Use of semi-analytical and dual-porosity models for simulating matrix diffusion in systems with parallel fractures Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-19 Kien T. Pham, Ronald W. Falta
A semi-analytical method and the dual-porosity model are used to simulate matrix diffusion between parallel fractures. The semi-analytical modeling parameters can be computed directly using the fracture spacing, aperture, and matrix properties. Those parameters do not require calibration to match an analytical solution for matrix diffusion. The dual-porosity model is applied under the same conditions
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CO2 zonal injection rate allocation and plume extent evaluation through wellbore temperature analysis Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-15 Refaat G. Hashish, Mehdi Zeidouni
Temperature analysis during a pause in injection operations, known as warmback analysis, has been used in the petroleum industry for evaluating the injection conformance and estimating the location of the flooded front in applications, such as waterflooding oil reservoirs. In this work, methods are introduced to extend the application of temperature warmback analysis to estimate the zonal CO2 injection
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Novel regimes of calcium carbonate dissolution in micron-scale confined spaces Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-14 Jianping Xu, Matthew T. Balhoff
We report the discovery of novel regimes of calcium carbonate dissolution in micron-scale confined spaces through microfluidic experiments. In the experiments, hydrochloric acid is injected into a microfluidic chamber with pre-deposited calcium carbonate solids. As the acid flow rate is decreased, the dissolution of calcium carbonate transits from a liquid/solid single-phase reactive transport regime
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Beyond Poiseuille flow: A transient energy-conserving model for flow through fractures of varying aperture Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-12 Bruce Gee, Robert Gracie
Large-scale models of fluid flow through fractures are almost exclusively based on Poiseuille flow (the cubic law). When the fracture aperture is time and/or spatially varying, flow is transient, and/or flow rates are modest (Re≥1), Poiseuille flow predictions can deviate substantially from the full Navier–Stokes solution and generally do not satisfy conservation of energy. A new Reduced Dimension
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Dynamic Water Potential Waves in Unsaturated Soils Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-10 WeiCheng Lo, Garrison Sposito, Tsai-Hsuan Lin
Quantitative descriptions of the temporal and spatial variations of volumetric water content and total water potential in unsaturated soils have for more than nine decades focused on diffusive mechanisms as represented by the Richards equation (Richards, 1931). However, recent laboratory studies (Lo et al., 2017) have revealed short-time transient behavior of water in non-deforming unsaturated soils
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Scaling CO2 convection in confined aquifers: Effects of dispersion, permeability anisotropy and geochemistry Adv. Water Resour. (IF 5.361) Pub Date : 2022-04-09 Hamidreza Erfani, Masoud Babaei, Carl Fredrik Berg, Vahid Niasar
Solubility trapping of carbon dioxide (CO2) in deep saline aquifers is considered an effective mechanism of carbon storage. The dissolution of CO2 in aquifer brine may result in gravitational instability, which triggers convective mixing (similar to the well-known Rayleigh–Bénard convection problem). The process starts with the diffusion of CO2 into the brine, followed by the onset of convection (tc)