• A. Hierro, S. Badia, P. Kus
    Computer Methods in Applied Mechanics and Engineering (2016). Vol. 309, pp. 532-553 (Preprint)

    Abstract
    The aim of this work is to propose an hp-adaptive algorithm for discontinuous Galerkin methods that is capable to detect the discontinuities and sharp layers and avoid the [...]

  • O. Colomés, S. Badia
    International Journal for Numerical Methods in Engineering (2015). Vol. 105 (5), pp. 372-400 (Preprint)

    Abstract
    In this work, we propose Runge-Kutta time integration schemes for the incompressible Navier-Stokes equations with two salient properties. First, velocity and pressure computations [...]

  • S. Smolentsev, S. Badia, R. Bhattacharyay, L. Bühler, L. Chen, Q. Huang, H. Jin, D. Krasnov, D. Lee, E. Valls, C. Mistrangelo, R. Munipalli, M. Ni, D. Pashkevich, A. Patel, G. Pulugundla, P. Satyamurthy, A. Snegirev, V. Sviridov, P. Swain, T. Zhou, O. Zikanov
    Fusion Engineering and Design (2015). Vol. 100 (11/2015), pp. 65-72 (Preprint)

    Abstract
    We propose a new activity on verification and validation (V&V) of MHD codes presently employed by the fusion community as a predictive capability tool for liquid metal [...]

  • S. Badia, A. Hierro
    Computer Methods in Applied Mechanics and Engineering (2015). Vol. 286, pp. 107-122 (Preprint)

    Abstract
    The aim of this work is to propose a monotonicity-preserving method for discontinuous Galerkin (dG) approximations of convection–diffusion problems. To do so, a novel [...]

  • S. Badia, A. Martín, R. Planas
    Journal of Computational Physics (2014). Vol. 274, pp. 562-591

    Abstract
    The thermally coupled incompressible inductionless magnetohydrodynamics (MHD) problem models the flow of an electrically charged fluid under the influence of an external electromagnetic [...]

  • S. Badia, J. Gutiérrez-Santacreu
    IMA Journal of Numerical Analysis (2014). Vol. 34 (3), pp. 1193-1221

    Abstract
    Residual-based stabilized finite element (FE) techniques for the Navier-Stokes equations lead to numerical discretizations that provide convection stabilization as well as [...]

  • S. Badia, A. Hierro
    SIAM Journal on Scientific Computing (2014). Vol. 36 (6), pp. A2673-A2697

    Abstract
    The aim of this work is to design monotonicity-preserving stabilized finite element techniques for transport problems as a blend of linear and nonlinear (shock-capturing) [...]

  • S. Badia, J. Baiges
    SIAM journal on scientific computing (2013). Vol. 35 (1), pp. A491-A516 (Preprint)

    Abstract
    In this work we design hybrid continuous-discontinuous finite element spaces that permit discontinuities on nonmatching element interfaces of nonconforming meshes. Then we [...]

  • S. Badia, R. Planas, J. Gutiérrez-Santacreu
    International Journal for Numerical Methods in Engineering (2013). Vol. 93 (3), pp. 302-328

    Abstract
    In this article, we propose different splitting procedures for the transient incompressible magnetohydrodynamics (MHD) system that are unconditionally stable. We consider [...]

  • S. Badia
    Computer Methods in Applied Mechanics and Engineering (2012). Vol. 247-248, pp. 65-72

    Abstract
    In this work we propose a stabilized nite element method that permits us to circumvent discrete inf-sup conditions, e.g. allowing equal order interpolation. The type [...]

  • S. Badia, F. Guillén-González, J. Gutiérrez-Santacreu
    Archives of Computational Methods in Engineering (2011). Vol. 18 (3), pp. 285-313

    Abstract
    The purpose of this work is to provide an overview of the most recent numerical developments in the field of nematic liquid crystals. The Ericksen-Leslie equations govern [...]

  • S. Badia, F. Guillén-González, J. Gutiérrez-Santacreu
    Journal of Computational Physics (2011). Vol. 230 (4), pp. 1686-1706

  • S. Badia, A. Quaini, A. Quarteroni
    Journal of Computational Physics (2009). Vol. 228 (21), pp. 7986-8014

    Abstract
    The interaction between a fluid and a poroelastic structure is a complex problem that couples the Navier–Stokes equations with the Biot system. The finite element [...]

  • S. Badia, F. Nobile, C. Vergara
    Computer Methods in Applied Mechanics and Engineering (2009). Vol. 198 (33-36), pp. 2768-2784

    Abstract
    In this work, we propose a Robin–Robin preconditioner combined with Krylov iterations for the solution of the interface system arising in fluid–structure [...]

  • S. Badia, A. Quaini, A. Quarteroni
    Computer Methods in Applied Mechanics and Engineering (2008). Vol. 197 (49-50), pp. 4216-4232

    Abstract
    In this article we address the numerical simulation of fluid–structure interaction (FSI) problems featuring large added-mass effect. We analyze different preconditioners [...]

  • S. Badia, F. Nobile, C. Vergara
    Journal of Computational Physics (2008). Vol. 227 (14), pp. 7027-7051

    Abstract
    In this article we design new partitioned procedures for fluid–structure interaction problems, based on Robin-type transmission conditions. The choice of the coefficient [...]

  • S. Badia, M. Parks, P. Bochev, M. Gunzburger, R. Lehoucq
    Multiscale modeling and simulation (2008). Vol. 7 (1), pp. 381-406

    Abstract
    A mathematical framework for the coupling of atomistic and continuum models by blending them over a subdomain subject to a constraint is developed. Using the framework, [...]

  • S. Badia, A. Quaini, A. Quateroni
    SIAM journal on scientific computing (2008). Vol. 30 (4), pp. 1778-1805

    Abstract
    We discuss in this paper the numerical approximation of fluid-structure interaction (FSI) problems dealing with strong added-mass effect. We propose new semi-implicit algorithms [...]

  • J. Fish, M. Nuggehally, M. Shephard, C. Picu, S. Badia, M. Parks, M. Gunzburger
    Computer Methods in Applied Mechanics and Engineering (2007). Vol. 196 (45-48), pp. 4548-4560

    Abstract
        A concurrent atomistic to continuum (AtC) coupling method is presented in this paper. The problem domain is decomposed into an atomistic sub-domain [...]

  • S. Badia, P. Bochev, R. Lehoucq, M. Parks, J. Fish, M. Nuggehally, M. Gunzburger
    International Journal for Multiscale Computational Engineering (2007). Vol. 5 (5), pp. 387-406

    Abstract
    A method for coupling atomistic and continuum models across a subdomain, or bridge region, is presented. Coupling is effected through a force-based blending model. The method [...]

  • J. Martí-Vide, M. Amarilla, F. Zarate
    Geomorphology (2014). Vol. 205, pp. 155-136

    Abstract
    The Pilcomayo River flows south-eastwards from the Bolivian Andes across the Chaco Plains, setting the border between Argentina and Paraguay. It flows down along 1000 km, [...]

  • T. Oliveira, X. Cobos, A. Sánchez-Arcilla, J. Sierra, M. Celigueta
    Journal of coastal research (2009). Vol. 2 (SI:56), pp. 1025-1029

    Abstract
    The generation of nonlinear waves in a numerical wave using first-order wavemaker theory is discussed comparing numerical results with free Surface data from large scale physical [...]

  • P. Rodríguez-Escales, X. Sánchez-Vila
    Water Resources Research (2020). Vol. 168, pp. 115192:1-115192:11

    Abstract
    Ultraviolet filters (UVFs) are emerging organic compounds found in most water systems. They are constituents of personal care products, as well as industrial ones. The concentration [...]

  • N. Ferrer, A. Folch, G. Masó, S. Sánchez, X. Sánchez-Vila
    Journal of Contaminant Hydrology (2020). Vol. 228, pp. 103556:1-103556:11

    Abstract
    Groundwater is the major source of drinking water in most rural areas in developing countries. This resource is threatened by the potential presence of faecal bacteria coming [...]

  • G. Sole-Mari, D. Bolster, D. Fernàndez-García, X. Sánchez-Vila
    Advances in Water Resources (2019). Vol. 131, pp. 103382:1-103382:13

    Abstract
    The reconstruction of smooth density fields from scattered data points is a procedure that has multiple applications in a variety of disciplines, including Lagrangian (particle-based) [...]

  • N. Perujo, A. Romaní, X. Sánchez-Vila
    Science of the total environmental (2019). Vol. 669, pp. 559-569

    Abstract
    Bioclogging is a main concern in infiltration systems as it may significantly shorten the service life of these low-technology water treatment methods. In porous media, biofilms [...]

  • C. Barba, A. Folch, X. Sánchez-Vila, M. Martínez-Alonso, N. Gaju-Ricart
    Journal of environmental management (2019). Vol. 237, pp. 332-343

    Abstract
    Subsurface microorganisms must deal with quite extreme environmental conditions. The lack of light, oxygen, and potentially nutrients are the main environmental stresses faced [...]

  • L. Locatelli, P. Binning, X. Sánchez-Vila, G. Sondergaard, L. Rosenberg, P. Bjerg
    Journal of Contaminant Hydrology (2019). Vol. 221, pp. 35-49

    Abstract
    Contaminated sites pose a significant threat to groundwater resources. The resources that can be allocated by water regulators for site investigation and cleanup are limited [...]

  • C. Barba, A. Folch, N. Gaju, X. Sánchez-Vila, M. Carrasquilla, A. Grau-Martínez, M. Martínez-Alonso
    Hydrology and Earth system sciences (2019). Vol. 23 (1), pp. 139-154

    Abstract
    Managed Aquifer Recharge (MAR) is a technique used worldwide to increase the availability of water resources. We study how MAR modifies microbial ecosystems and its implications [...]

  • A. Carles-Brangari, D. Fernàndez-García, X. Sánchez-Vila, S. Manzoni
    Advances in Water Resources (2018). Vol. 116, pp. 178-194

    Abstract
    A better understanding of microbial dynamics in porous media may lead to improvements in the design and management of a number of technological applications, ranging from [...]

  • P. Rodríguez-Escales, A. Canelles, X. Sánchez-Vila, A. Folch, D. Kurtzman, R. Rossetto, E. Fernández-Escalante, J. Lobo-Ferreira, M. Sapiano, J. San-sebastián, C. Schüth
    Hydrology and Earth system sciences (2018). Vol. 22 (6), pp. 3213-3227

    Abstract
    Managed aquifer recharge (MAR) can be affected by many risks. Those risks are related to different technical and non-technical aspects of recharge, like water availability, [...]

  • N. Perujo, A. Romaní, X. Sánchez-Vila
    Environmental science and technology (2018). Vol. 52 (10), pp. 5734-5743 (Preprint)

    Abstract
    Infiltration systems are treatment technologies based on water percolation through porous media where biogeochemical processes take place. Grain size distribution (GSD) acts [...]

  • S. Rubol, A. Freixa, X. Sánchez-Vila, A. Romaní
    Biofouling (2018). Vol. 34 (2), pp. 200-211 (Preprint)

    Abstract
    Two non-destructive techniques, confocal laser scanning microscopy (CLSM) and planar optode (VisiSens imaging), were combined to relate the fine-scale spatial structure of [...]

  • G. Sole-Mari, D. Fernàndez-García, P. Rodríguez-Escales, X. Sánchez-Vila
    Water Resources Research (2017). Vol. 53 (11), pp. 9919-9919 (Preprint)

    Abstract
    In recent years, a large body of the literature has been devoted to study reactive transport of solutes in porous media based on pure Lagrangian formulations. Such approaches [...]

  • T. Ginn, L. Schreyer, X. Sánchez-Vila, M. Nassar, A. Ali, S. Krautle
    Water Resources Research (2017). Vol. 53 (11), pp. 9941-9959

    Abstract
    Multicomponent reactive transport involves the solution of a system of nonlinear coupled partial differential equations. A number of methods have been developed to simplify [...]

  • M. Demir, N. Copty, P. Trinchero, X. Sánchez-Vila
    Advances in Water Resources (2017). Vol. 104, pp. 174-182 (Preprint)

    Abstract
        Estimating the statistical parameters (mean, variance, and integral scale) that define the spatial structure of the transmissivity or hydraulic [...]

  • N. Perujo, X. Sánchez-Vila, L. Proia, A. Romaní
    Environmental science and technology (2017). Vol. 51 (11), pp. 6110-6119 (Preprint)

    Abstract
    Physical heterogeneity determines interstitial fluxes in porous media. Nutrients and organic matter distribution in depth influence physicochemical and microbial processes [...]

  • P. Rodríguez-Escales, D. Fernàndez-García, J. Drechsel, A. Folch, X. Sánchez-Vila
    Water Resources Research (2017). Vol. 53 (5), pp. 4376-4392

    Abstract
    Improving degradation rates of emerging organic compounds (EOCs) in groundwater is still a challenge. Although their degradation is not fully understood, it has been observed [...]

  • G. Freixas, D. Fernàndez-García, X. Sánchez-Vila
    Water Resources Research (2017). Vol. 53 (1), pp. 602-618 (Preprint)

    Abstract
    Most methods for hydraulic test interpretation rely on a number of simplified assumptions regarding the homogeneity and isotropy of the underlying porous media. This way, [...]

  • A. Carles-Brangari, X. Sánchez-Vila, A. Freixa, A. Romaní, S. Rubol, D. Fernàndez-García
    Water Resources Research (2017). Vol. 53 (1), pp. 93-109 (Preprint)

    Abstract
    The accumulation of biofilms in porous media is likely to influence the overall hydraulic properties and, consequently, a sound understanding of the process is required for [...]

  • N. Ahmad, A. Wörman, X. Sánchez-Vila, A. Bottacin-Busolin
    Advances in Water Resources (2016). Vol. 98, pp. 132-146 (Preprint)

    Abstract
    CO2 that is injected into a geological storage reservoir can leak in dissolved form because of brine displacement from the reservoir, which is caused by large-scale groundwater [...]

  • X. Sánchez-Vila, D. Fernàndez-García
    Water Resources Research (2016). Vol. 52 (12), pp. 9246-9258

    Abstract
    We address modern topics of stochastic hydrogeology from their potential relevance to real modeling efforts at the field scale. While the topics of stochastic hydrogeology [...]

  • P. Rodríguez-Escales, X. Sánchez-Vila
    Water Research (Oxford) (2016). Vol. 105, pp. 540-550 (Preprint)

    Abstract
    Degradation of emerging organic compounds in saturated porous media is usually postulated as following simple low-order models. This is a strongly oversimplified, and in some [...]

  • N. Ahmad, A. Wörman, X. Sánchez-Vila, J. Jarsjö, A. Borracin-Busolin, H. Hellevang
    International Journal of Greenhouse Gas Control (2016). Vol. 54 (1), pp. 129-144 (Preprint)

    Abstract
    Injection of free-phase supercritical CO2 into deep geological reservoirs is associated with risk of considerable return flows towards the land surface due to the buoyancy [...]

  • P. Rodríguez-Escales, A. Folch, B. Breukelen, G. Vidal-Gavilan, X. Sánchez-Vila
    Journal of Hydrology (2016). Vol. 538, pp. 127-137 (Preprint)

    Abstract
    Enhanced In situ Biodenitrification (EIB) is a capable technology for nitrate removal in subsurface water resources. Optimizing the performance of EIB implies devising an [...]

  • D. Pedretti, A. Russian, X. Sánchez-Vila, M. Dentz
    Water Resources Research (2016). (preprint) Vol. 52 (7), pp. 5008-5024

    Abstract
    We present an investigation of the scale dependence of hydraulic parameters in fractured media based on the concept of transfer functions (TF). TF methods provide an inexpensive [...]

  • D. Fernàndez-García, M. Barahona-Palomo, C. Henri, X. Sánchez-Vila
    Journal of Hydrology (2015). Vol. 531 (Part 1), pp. 62-72 (Preprint)

    Abstract
    Facies delineation is defined as the separation of geological units with distinct intrinsic characteristics (grain size, hydraulic conductivity, mineralogical composition). [...]

  • M. Rahbaralam, D. Fernàndez-García, X. Sánchez-Vila
    Journal of computational physics (2015). Vol. 303, pp. 95-104

    Abstract
    Random walk particle tracking methods are a computationally efficient family of methods to solve reactive transport problems. While the number of particles in most realistic [...]

  • N. Ahmad, A. Wörman, A. Bottacin-Busolin, X. Sánchez-Vila
    International Journal of Greenhouse Gas Control (2015). Vol. 42, pp. 672-689 (preprint)

    Abstract
    One concern regarding the underground storage of carbon dioxide (CO2) is its potential leakage from reservoirs. Over short period of time, the leakage risk is related mainly [...]

  • T. Dutta, A. Carles-Brangari, D. Fernàndez-García, S. Rubol, J. Tirado-Conde, X. Sánchez-Vila
    Journal of Hydrology (2015). Vol. 527, pp. 151-159 (Preprint)

    Abstract
    Vadose zone oxygen dynamics control all subsurface redox reactions and play a decisive role in maintaining groundwater quality. Although drying and wetting events are common [...]

  • E. Siirila-Woodburn, D. Fernàndez-García, X. Sánchez-Vila
    Water Resources Research (2015). Vol. 51 (6), pp. 4574-4591

    Abstract
    While particle tracking techniques are often used in risk frameworks, the number of particles needed to properly derive risk metrics such as average concentration for a given [...]

  • D. Fernàndez-García, X. Sánchez-Vila
    Water Resources Research (2015). Vol. 51 (4), pp. 3166-3180

    Abstract
    The often observed tailing of tracer breakthrough curves is caused by a multitude of mass transfer processes taking place over multiple scales. Yet, in some cases, it is convenient [...]

  • A. Freixa, S. Rubol, A. Carles-Brangari, A. Butturini, X. Sánchez-Vila, A. Romaní
    Science of the total environmental (2015). Vol. 540, pp. 20-31 (preprint)

    Abstract
    Water flowing through hyporheic river sediments or artificial recharge facilities promotes the development of microbial communities with sediment depth. We performed an 83-day [...]

  • E. Siirila-Woodburn, X. Sánchez-Vila, D. Fernàdez-García
    Water Resources Research (2015). Vol. 51 (4), pp. 2128-2152

    Abstract
    The analysis of breakthrough curves (BTCs) is of interest in hydrogeology as a way to parameterize and explain processes related to anomalous transport. Classical BTCs assume [...]

  • S. Armengol, X. Sánchez-Vila, A. Folch
    Journal of Hydrology (2014). Vol. 517, pp. 889-900

    Abstract
    We introduce a methodology to include uncertainty into DRASTIC (Aller et al., 1987), the most commonly used method to define aquifer vulnerability. For this purpose, [...]

  • V. Velasco, I. Tubau, D. Gaitanaru, E. Vázquez-Suñé, R. Gogu, M. Alcaraz, A. Serrano-Juan, D. Fernàndez-García, T. Garrido, J. Fraile, X. Sánchez-Vila
    Computers & Geosciences (2014). Vol. 70, pp. 164-180

    Abstract
    A software platform (QUIMET) was developed to improve the sorting, analysis, calculations, visualizations, and interpretations of hydrogeochemical data in a GIS environment. [...]

  • M. Riva, X. Sánchez-Vila, A. Guadagnini
    Water Resources Research (2014). Vol. 50 (6), pp. 5298-5308

    Abstract
    We derive analytical relationships between the spatial covariance of the (natural) logarithm of hydraulic conductivity (K) and that of representative soil particle sizes and [...]

  • D. Pedretti, D. Fernàndez-García, X. Sánchez-Vila, D. Bolster, D. Benson
    Water Resources Research (2014). Vol. 50 (2), pp. 1205-1224

    Abstract
            Aquifer hydraulic properties such as hydraulic conductivity (K) are ubiquitously heterogeneous and typically only a statistical [...]

  • A. Molinari, C. Ayora, M. Marcaccio, L. Guadagnini, X. Sánchez-Vila, A. Guadagnini
    Environmental science and pollution research (2014). Vol. 21 (3), pp. 1628-1637

    Abstract
    Dissolved arsenic (As) concentrations detected in groundwater bodies of the Emilia-Romagna Region (Italy) exhibit values which are above the regulation limit and could be [...]

  • V. Kumar, F. Barros, M. Schuhmacher, D. Fernàndez-García, X. Sánchez-Vila
    Journal of hazardous materials (2013). Vol. 263 (1), pp. 197-206

    Abstract
        We study the time dependent interaction between hydrogeological and exposure parameters in daily dose predictions due to exposure of humans [...]

  • D. Pedretti, D. Fernàndez-García, D. Bolster, X. Sánchez-Vila
    Water Resources Research (2013). Vol. 49 (7), pp. 4157-4173

    Abstract
    Anomalous transport in advection-dominated convergent flow tracer tests can occurs due to small-scale heterogeneities in aquifer hydraulic properties. These result in fluctuations [...]

  • F. Barros, A. Guadagnini, D. Fernàndez-García, M. Riva, X. Sánchez-Vila
    Journal of Hydrology (2013). Vol. 494 (28), pp. 107-115

    Abstract
    We addressed the value of hydrogeological information on the assessment of the risk that an operating pumping well is polluted. The work considered a heterogeneous aquifer and [...]

  • Z. Li, X. Ge, K. Li, X. Tong
    Siphon pipe Parameter Optimization of the Toilet Using CFD-DEM Coupling Method (2020). 1

    Abstract
    The computational fluid dynamics (CFD) and discrete element method (DEM) coupling method is used to simulate the flushing process of the toilet and this paper analyzes the [...]

  • E. Janetti, I. Dror, M. Riva, A. Guadagnini, X. Sánchez-Vila
    Transport in Porous Media (2013). Vol. 97 (3), pp. 295-315

    Abstract
    We study the mobility and interaction under competing conditions observed for copper ( Cu2+ Cu2+) and zinc ( Zn2+ Zn2+) ions in the context of laboratory-scale [...]

  • F. Barros, D. Fernàndez-García, D. Bolster, X. Sánchez-Vila
    Water Resources Research (2013). Vol. 49 (4), pp. 1929-1942

    Abstract
    Aquifer remediation is a challenging problem with environmental, social, and economic implications. As a general rule, pumping proceeds until the concentration of the target [...]

  • X. Sánchez-Vila, S. Rubol, A. Carles-Brangari, D. García
    Advances in Water Resources (2013). Vol. 54, pp. 181-190

    Abstract
    We provide an approximate analytical solution for the substrate-microbial dynamics of the organic carbon cycle in natural soils under hydro-climatic variable forcing conditions. [...]

  • A. Molinari, A. Guadagnini, M. Marcaccio, S. Straface, X. Sánchez-Vila, L. Guadagnini
    Science of the total environment (2013). Vol. 444, pp. 231-240

    Abstract
    We investigated the role of iron (Fe) on arsenic (As) release from two samples of a natural deep soil collected in an aquifer body in the Emilia-Romagna Region, Italy. Each [...]

  • M. Barbieri, J. Carrera, C. Ayora, X. Sánchez-Vila, T. Licha, K. Nödler, V. Osorio, S. Pérez, M. Köck-Schulmeyer, M. Alda, D. Barceló
    Science of the Total Environment (2012). Vol. 426, pp. 265-263

    Abstract
          Soil-aquifer processes have proven to work as a natural treatment for the attenuation of numerous contaminants during artificial recharge [...]

  • A. Navarro-Ortega, V. Acuña, R. Batalla, J. Blasco, C. Conde, F. Elorza, A. Elosegi, F. Francés, F. La-Roca, I. Muñoz, M. Petrovic, Y. Picó, S. Sabater, X. Sánchez-Vila, M. Schuhmacher, D. Barceló
    Evironmental Science and Pollution Research (2012). Vol. 19 (4), pp. 918-933

    Abstract
    Introduction The Consolider-Ingenio 2010 project SCARCE, with the full title “Assessing and predicting effects on water quantity and quality in Iberian Rivers caused [...]

  • D. Pedretti, M. Barahona-Palomo, D. Bolster, X. Sánchez-Vila, D. Fernàdez-García
    Journal of Hydrology (2012). Vol. 430-431, pp. 118-126

    Abstract
    The efficiency of artificial surface ponds (SPs) for managed aquifer recharge (MAR) is mostly controlled by the topmost portion of the soil. The most significant soil property [...]

  • D. Fernàndez-García, D. Bolster, X. Sánchez-Vila, D. Tartakovsky
    Advances in Water Resources (2012). Vol. 36, pp. 108-120

    Abstract
    Upon their release into the subsurface, non-aqueous phase liquids (NAPLs) dissolve slowly in groundwater and/or volatilize in the vadose zone threatening the environment and [...]

  • D. Pedretti, M. Barahona-Palomo, D. Bolster, D. Fernàndez-García, X. Sánchez-Vila, D. Tartakovsky
    Advances in Water Resources (2012). Vol. 36, pp. 23-35

    Abstract
          Aquifer artificial recharge from surface infiltration ponds is often conducted to replenish depleted aquifers in arid and semi-arid zones. [...]

  • A. Jurado, F. Gaspari, V. Vilarrasa, D. Bolster, X. Sánchez-Vila, D. Fernàndez-García, D. Tartakovsky
    Engineering geology (2012). Vol. 125, pp. 35-44

    Abstract
          Construction of underground structures (e.g., subway lines, railways and highway tunnels) is inherently hazardous, posing risks to both [...]

  • M. Barbieri, T. Licha, K. Nödler, J. Carrera, C. Ayora, X. Sánchez-Vila
    Chemosphere (2012). Vol. 89 (11), pp. 1272-1277

    Abstract
          The fate of the three environmentally relevant β-blockers atenolol, metoprolol and propranolol has been studied in batch experiments [...]

  • M. Barbieri, J. Carrera, X. Sánchez-Vila, C. Ayora, J. Cama, M. Köck-Schulmeyer, M. Alda, D. Barceló, J. Brunet, M. García
    Journal of Contaminant Hydrology (2011). Vol. 126 (3-4), pp. 330-345

    Abstract
          The natural processes occurring in subsurface environments have proven to effectively remove a number of organic pollutants from water. [...]

  • P. Trinchero, R. Beckie, X. Sánchez-Vila, C. Nichol
    Water Resources Research (2011). Vol. 47 (W07532), pp. 1-11

    Abstract
    Waste rock piles are an outcome of open pit and underground mining operations. Unprocessed low‐grade rock is disposed of in piles from several meters high to 100 m+ high. [...]

  • D. Pedretti, D. Fernàndez-García, X. Sánchez-Vila, M. Barahona-Palomo, D. Bolster
    Stochastic environmental research and risk assessment (2011). Vol. 25 (8), pp. 1065-1075

    Abstract
    The performance of managed artificial recharge (MAR) facilities by means of surface ponds (SP) is controlled by the temporal evolution of the global infiltration capacity [...]

  • F. Pereira, D. Bolster, X. Sánchez-Vila, W. Nowak
    Water Resources Research (2011). Vol. 47 (W05508), pp. 1-13

    Abstract
    Assessing health risk in hydrological systems is an interdisciplinary field. It relies on the expertise in the fields of hydrology and public health and needs powerful translation [...]

  • M. Barahona-Palomo, M. Riva, X. Sánchez-Vila, E. Vázquez-Suñé, A. Guadagnini
    Hydrogeology Journal (2011). Vol. 19 (3), pp. 603-612

    Abstract
    Hydraulic conductivities associated with measurement scale of the order of 10–1 m and collected during an extensive field campaign near Tübingen, Germany, [...]

  • N. Copty, P. Trinchero, X. Sánchez-Vila
    Water Resources Research (2011). vol. 47 (W05526), pp. 1-11

    Abstract
    Hydrologists routinely analyze pumping test data using conventional interpretation methods that are based on the assumption of homogeneity and that, consequently, yield single [...]

  • D. Fernàndez-García, X. Sánchez-Vila
    Journal of Contaminant Hydrology (2011). Vol. 120-121 (c), pp. 99-114

    Abstract
    Random walk particle tracking methodologies to simulate solute transport of conservative species constitute an attractive alternative for their computational efficiency [...]

  • X. Sánchez-Vila, D. Fernàndez-García, A. Guadagnini
    Water Resources Research (2010). Vol. 46 (w12510), pp. 1-7

    Abstract
    We provide a quantitative interpretation of the column experiment reported by Gramling et al. (2002). The experiment involves advection‐dominated transport in porous media [...]

  • X. Sánchez-Vila, L. Donado, A. Guadagnini, J. Carrera
    Water Resources Research (2010). Vol. 46 (7), pp. 1-13

    Abstract
    Analysis of the space‐time evolution of reactive solutes in porous systems is complex owing to the presence of different types of chemical reactions. The complete description [...]

  • M. Willmann, J. Carrera, X. Sánchez-Vila, O. Silva, M. Dentz
    Water Resources Research (2010). Vol. 46 (w07515), pp. 1-15

    Abstract
    Fast chemical reactions are driven by mixing‐induced chemical disequilibrium. Mixing is poorly represented by the advection‐dispersion equation. Instead, effective dynamics [...]

  • E. Vázquez-Suñé, J. Carrera, I. Tubau, X. Sánchez-Vila, A. Soler
    Hydrology and Earth system sciences (2010). Vol. 14 (10), pp. 2085-2097

    Abstract
    Evaluating the proportion in which waters from different origins are mixed in a given water sample is relevant for many hydrogeological problems, such as quantifying total [...]

  • D. Fernàndez-García, P. Trinchero, X. Sánchez-Vila
    Water Resources Research (2010). Vol. 46 (10), pp. 1-14

    Abstract
    We present a method for the stochastic simulation of point‐to‐point transport connectivity honoring data from three types of information: (1) travel time estimates obtained [...]

  • X. Sánchez-Vila, D. Bolster
    Journal of Hydrology (2009). Vol. 378 (3-4), pp. 281-289

    Abstract
    Cation exchange in groundwater is one of the dominant surface reactions that occurs in nature and it carries with it many important environmental implications. The mass transfer [...]

  • M. Riva, A. Guadagnini, X. Sánchez-Vila
    Mathematical geosciences (2009). Vol. 41 (8), pp. 835-853

    Abstract
    In this paper, we analyze the impact of physical and chemical heterogeneity on solute travel time to a pumping well. We consider a solute undergoing reversible linear instantaneous [...]

  • D. Bolster, M. Barahona, M. Dentz, D. Fernàndez-García, X. Sánchez-Vila, P. Trinchero, C. Valhondo, D. Tartakovsky
    Water Resources Research (2009). Vol. 45 (6), pp. 1-10

    Abstract
    Heterogeneity of subsurface environments and insufficient site characterization are some of the reasons why decisions about groundwater exploitation and remediation have to [...]

  • V. Zavala-Sánchez, M. Dentz, X. Sánchez-Vila
    Advances in Water Resources (2008). Vol. 32 (5), pp. 635-648

    Abstract
    Matheron and de Marsily [Matheron M, de Marsily G. Is the transport in porous media always diffusive? A counter-example. Water Resour Res 1980;16:901–17] studied transport [...]

  • A. Guadagnini, X. Sánchez-Vila, M. Saaltink, M. Bussini, B. Berkowitz
    Advances in Water Resources (2009). Vol. 32 (5), pp. 756-766

    Abstract
    We address the question of how one can combine theoretical and numerical modeling approaches with limited measurements from laboratory flow cell experiments to realistically [...]

  • L. Donado, X. Sánchez-Vila, M. Dentz, J. Carrera
    Water Resources Research (2009). Vol. 45 (W11402), pp. 1-11

    Abstract
    Multicomponent reactive transport in aquifers is a highly complex process, owing to a combination of variability in the processes involved and the inherent heterogeneity of [...]

  • M. Willmann, J. Carrera, X. Sánchez-Vila
    Water Resources Research (2008). Vol. 44 (12), pp. 1-13

    Abstract
    Power law tailing is often observed in the breakthrough curves (BTCs) of tracer tests. Tailing is attributed to heterogeneity of aquifer properties and cannot be properly [...]

  • P. Trinchero, X. Sánchez-Vila, D. Fernàndez-García
    Advances in Water Resources (2008). Vol. 31 (12), pp. 1742-1753

    Abstract
    Connectivity of high/low-permeability areas has been recognized to significantly impact groundwater flow and solute transport. The task of defining a rigorous quantitative [...]

  • N. Copty, P. Trinchero, X. Sánchez-Vila, M. Sarioglu, A. Findikakis
    Water Resources Research (2008). Vol. 44 (11), 1-15

    Abstract
    Pumping tests are routinely interpreted from the analysis of drawdown data and their derivatives. These interpretations result in a small number of apparent parameter values [...]

  • M. Riva, A. Guadagnini, D. Fernàndez-García, X. Sánchez-Vila, T. Ptak
    Journal of Contaminant Hydrology (2008). Vol. 101 (1-4), pp. 1-13

    Abstract
    We analyze the relative importance of the selection of (1) the geostatistical model depicting the structural heterogeneity of an aquifer, and (2) the basic processes [...]

  • D. Fernàndez-García, X. Sánchez-Vila, A. Guadagnini
    Advances in Water Resources (2008). Vol. 31 (10), pp. 1364-1376

    Abstract
    Chemical species are advected by water and undergo mixing processes due to effects of local diffusion and/or dispersion. In turn, mixing causes reactions to take place so [...]

  • X. Sánchez-Vila, A. Guadagnini, D. Fernández-García
    Mathematical geosciences (2008). Vol. 41 (3), pp. 323-351

    Abstract
    This paper presents an approach conducive to an evaluation of the probability density function (pdf) of spatio-temporal distributions of concentrations of reactive solutes [...]

  • P. Trinchero, X. Sánchez-Vila, N. Copty, A. Findikakis
    Ground water (2008). Vol. 46 (1), pp. 133-143

    Abstract
    A novel methodology for the interpretation of pumping tests in leaky aquifer systems, referred to as the double inflection point (DIP) method, is presented. The method is [...]

  • X. Sánchez-Vila, D. Fernández
    Enseñaza de las ciencias de la Tierra (2007). Vol. 15 (3), pp. 250-255

    Abstract
    Water is scarce, and thus must be managed adequately in order to satisfy the global demand within a water resources integral planning. Management can act either on offer or [...]