Exploració per autor "Fernández García, Daniel"
Ara es mostren els items 1-20 de 49
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A closer look: high-resolution pore-scale simulations of solute transport and mixing through porous media columns
Solé Marí, Guillem; Bolster, Diogo; Fernández García, Daniel (2022-01)
Article
Accés obertMixing is pivotal to conservative and reactive transport behaviors in porous media. Methods for investigating mixing processes include mathematical models, laboratory experiments and numerical simulations. The latter have ... -
A comparison of Eulerian and Lagrangian transport and non-linear reaction algorithms
Benson, David A.; Aquino, Tomás; Bolster, Diogo; Engdahl, Nicholas; Henri, Christopher Vincent; Fernández García, Daniel (Elsevier, 2017-01)
Article
Accés obertWhen laboratory-measured chemical reaction rates are used in simulations at the field-scale, the models typically overpredict the apparent reaction rates. The discrepancy is primarily due to poorer mixing of chemically ... -
A KDE-based random walk method for modeling reactive transport with complex kinetics in porous media
Solé Marí, Guillem; Fernández García, Daniel; Rodríguez Escales, Paula-Felicidad; Sánchez Vila, Francisco Javier (2017-11)
Article
Accés obertIn 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 have also been extended to accommodate second-order ... -
A locally adaptive kernel regression method for facies delineation
Fernández García, Daniel; Barahona-Palomo, Marco; Henri, Christopher Vincent; Sánchez Vila, Francisco Javier (2015-12-01)
Article
Accés obert -
A mechanistic model (BCC-PSSICO) to predict changes in the hydraulic properties for bio-amended variably saturated soils
Carles Brangari, Albert; Sánchez Vila, Francisco Javier; Freixa Casals, Anna; Romani Cornet, Anna Maria; Rubol, Simonetta; Fernández García, Daniel (2017-01)
Article
Accés obertThe 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 the proper design and management of many technological ... -
A random walk solution for modeling solute transport with network reactions and multi-rate mass transfer in heterogeneous systems: Impact of biofilms
Henri, Christopher Vincent; Fernández García, Daniel (Elsevier, 2015-12)
Article
Accés obertThe interplay between the spatial variability of the aquifer hydraulic properties, mass transfer due to sub-grid heterogeneity and chemical reactions often complicates reactive transport simulations. It is well documented ... -
A sensivity analysis of tide-induced head fluctuations in coastal aquifers
Slooten, Luit Jan; Carrera Ramírez, Jesús; Castro, Eduardo; Fernández García, Daniel (Elsevier, 2010)
Article
Accés restringit per política de l'editorialThe response of coastal aquifers to sea-level fluctuations, notably tides, is known to contain much information about hydraulic parameters. We performed sensitivity analyses to assess how much, about what and where this ... -
An analytical solution to study substrate-microbial dynamics in soils
Sánchez Vila, Francisco Javier; Rubol, Simonetta; Carles Brangari, Albert; Fernández García, Daniel (Elsevier, 2013-04)
Article
Accés restringit per política de l'editorialWe provide an approximate analytical solution for the substrate-microbial dynamics of the organic carbon cycle in natural soils under hydro-climatic variable forcing conditions. The model involves mass balance in two carbon ... -
Assessing the joint impact of DNAPL source-zone behavior and degradation products on the probabilistic characterization of human health risk
Henri, Christopher Vincent; Fernández García, Daniel; De Barros, Felipe P.J. (Elsevier, 2016-02)
Article
Accés obertThe release of industrial contaminants into the subsurface has led to a rapid degradation of groundwater resources. Contamination caused by Dense Non-Aqueous Phase Liquids (DNAPLs) is particularly severe owing to their ... -
Automatic calibration of groundwater models with bias correction and data filtering: working with drawdown data
Trabucchi, Michela; Fernández García, Daniel; Carrera Ramírez, Jesús (2021-03)
Article
Accés obertThe drawdown response to a hydraulic stress contains crucial information to characterize an aquifer. Modeling drawdowns is far easier than modeling heads because they are subject to homogeneous (zero) internal sink/sources, ... -
Avaluació de riscos ambientals mitjançant modelació geoquímica
Sánchez Vila, Francisco Javier; Fernández García, Daniel (Universitat Politècnica de Catalunya. Escola Tècnica Superior d'Enginyers de Camins Canals i Ports de Barcelona, 2011-11-15)
Comunicació de congrés
Accés obertL'interés sobre la recàrrega artificial d'aqüífers s'ha incrementat en els últims anys. La recerca del Grup d'Hidrologia Subterrània (GHS) de l'ETSECCPB vol donar una visió integrada i multidisciplinar sobre el risc ... -
Combined simulation and optimization framework for irrigation scheduling in agriculture fields
Fontanet Ambrós, Mireia; Fernández García, Daniel; Rodrigo, G; Ferrer, Francesc; Villar Mir, Josep Maria (Springer Nature, 2022-01)
Article
Accés obertIn the context of growing evidence of climate change and the fact that agriculture uses about 70% of all the water available for irrigation in semi-arid areas, there is an increasing probability of water scarcity scenarios. ... -
Combining physical-based models and satellite images for the spatio-temporal assessment of soil infiltration capacity
Pedretti, Daniele; Fernández García, Daniel; Sánchez Vila, Francisco Javier; Barahona-Palomo, Marco; Bolster, Diogo (2011-05-29)
Article
Accés restringit per política de l'editorialThe performance of managed artificial recharge (MAR) facilities by means of surface ponds (SP) is controlled by the temporal evolution of the global infiltration capacity Ic of topsoils. Cost-effective maintenance operations ... -
Conditional probability density functions of concentrations for mixing-controlled reactive transport in heterogeneous aquifers
Sánchez Vila, Francisco Javier; Guadagnini, Alberto; Fernández García, Daniel (2008)
Article
Accés obert -
Conditional stochastic mapping of transport connectivity
Sánchez Vila, Francisco Javier; Fernández García, Daniel; Trinchero, Paolo (2010-05-07)
Text en actes de congrés
Accés obertWe present a method for the stochastic simulation of point-to-point transport connectivity honoring data from three types of information: (a) travel time estimates obtained from field tracer tests; (b) estimates of flow ... -
Connecting bacterial colonization to physical and biochemical changes in a sand box infiltration experiment
Rubol, Simonetta; Freixa, Anna; Carles Brangari, Albert; Fernández García, Daniel; Romani Cornet, Anna Maria; Sánchez Vila, Francisco Javier (Elsevier, 2014-09-19)
Article
Accés restringit per política de l'editorialInfiltration through sediments is linked to complex biogeochemical processes occurring at small spatial scales, often leading to a progressive reduction in infiltration rates due to microbial growth and/or mechanical ... -
Debates—Stochastic subsurface hydrology from theory to practice: why stochastic modeling has not yet permeated into practitioners?
Sánchez Vila, Francisco Javier; Fernández García, Daniel (2016-12)
Article
Accés obertWe address modern topics of stochastic hydrogeology from their potential relevance to real modeling efforts at the field scale. While the topics of stochastic hydrogeology and numerical modeling have become routine in ... -
Do we really need a large number of particles to simulate bimolecular reactive transport with random walk methods? A kernel density estimation approach
Rahbaralam, Maryam; Fernández García, Daniel; Sánchez Vila, Francisco Javier (2015-12)
Article
Accés obertRandom walk particle tracking methods are a computationally efficient family of methods to solve reactive transport problems. While the number of particles in most realistic applications is in the order of 106–109106–109, ... -
Dynamic management zones for irrigation scheduling
Fontanet Ambrós, Mireia; Scudiero, Elia; Skaggs, T.H.; Fernández García, Daniel; Ferrer, Fernado; Rodrigo, G; Bellvert, Joaquim (2020-08)
Article
Accés obertIrrigation scheduling decision-support tools can improve water use efficiency by matching irrigation recommendations to prevailing soil and crop conditions within a season. Yet, little research is available on how to support ... -
Ecological and soil hydraulic implications of microbial responses to stress: a modeling analysis
Carles Brangari, Albert; Fernández García, Daniel; Sánchez Vila, Francisco Javier; Manzoni, Stefano (Elsevier, 2018-06)
Article
Accés obertA 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 the degradation of contaminants to the optimization ...