Exploració per autor "Fernández García, Daniel"
Ara es mostren els items 40-50 de 50
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Random-walk modeling of reactive transport in porous media with a reduced-order chemical basis of conservative components
(2021-04)
Article
Accés obertIn this work we employ a reduced-order basis of conservative chemical components to model reactive transport using a Lagrangian (particle tracking) method. While this practice is well-understood in the Eulerian (grid-based) ... -
Smoothed Particle Hydrodynamics for anisotropic dispersion in heterogeneous porous media
(Elsevier, 2024-01)
Article
Accés obertIn the context of modeling solute transport through heterogeneous porous media, particle methods possess inherent advantages with respect to mesh-based (Eulerian) methods. In Smoothed Particle Hydrodynamics (SPH), particles ... -
Solute transport in bounded porous media characterized by Generalized Sub-Gaussian log-conductivity distributions
(Elsevier, 2021-01)
Article
Accés obertThere are increasing evidences that probability distributions and associated statistical moments of a variety of hydrogeological and soil science variables and their spatial increments display distinctive scale-dependent ... -
Stochastic estimation of hydraulic transmissivity fields using flow connectivity indicator data
(2017-01)
Article
Accés obertMost methods for hydraulic test interpretation rely on a number of simplified assumptions regarding the homogeneity and isotropy of the underlying porous media. This way, the actual heterogeneity of any natural parameter, ... -
Taller de pràctiques de laboratori d'hidrologia subterrània mitjançant models físics experimentals
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
Comunicació de congrés / Text en actes de congrés
Accés obertEn cap de les assignatures de grau d'hidrologia subterrània s'imparteixen pràctiques de laboratori. Això fa que l'estudiant rebi una educació purament teórica sense aaribar a assolir correctament els conceptes bàsics ... -
The effects of sediment depth and oxygen concentration on the use of organic matter: an experimental study using an infiltration sediment tank
(2015-04-02)
Article
Accés obertWater flowing through hyporheic river sediments or artificial recharge facilities promotes the development of microbial communities with sediment depth. We performed an 83-day mesocosm infiltration experment, to study ... -
The value of satellite remote sensing soil moisture data and the DISPATCH algorithm in irrigation fields
(2018-11)
Article
Accés obertSoil moisture measurements are needed in a large number of applications such as hydro-climate approaches, watershed water balance management and irrigation scheduling. Nowadays, different kinds of methodologies exist for ... -
The worth of stochastic inversion for identifying connectivity by means of a long-lasting large-scale hydraulic test: the Salar de Atacama case study
(2022-06)
Article
Accés obertUnderstanding groundwater flow involves characterizing the spatial variability of aquifer attributes and possible hydraulic connectivity structures. The latter are of crucial importance because high permeability channels ... -
Toward efficiency in heterogeneous multispecies reactive transport modeling: A particle-tracking solution for first-order network reactions
(2014-09)
Article
Accés obertModeling multispecies reactive transport in natural systems with strong heterogeneities and complex biochemical reactions is a major challenge for assessing groundwater polluted sites with organic and inorganic contaminants. ... -
Vadose zone oxygen (O2) dynamics during drying and wetting cycles: An artificial recharge laboratory experiment
(Elsevier, 2015-05-02)
Article
Accés obertVadose zone oxygen dynamics control all subsurface redox reactions and play a decisive role in maintaining groundwater quality. Although drying and wetting events are common in artificial recharge, their effects on subsurface ... -
Visualizing and evaluating wormholes formation dynamics under flow competition in an intermediate-scale dissolution experiment
(Elsevier, 2023-04)
Article
Accés restringit per política de l'editorialWormholes are highly conductive channels that develop in high solubility rocks. They are especially important for environmental and industrial sustainability in saline karst aquifers (e.g. Salar de Uyuni, Salar de Atacama). ...
