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Antoine Picard, Florent Barbecot, Gérard Bardoux, Pierre Agrinier, Marina Gillon, José A. Corcho Alvarado, Vincent Schneider, Jean-François Hélie and Frédérick de Oliveira
Accurate discharge measurement is mandatory for any hydrological study. While the ?velocity? measurement method is adapted to laminar flows, the ?dilution? method is more appropriate for turbulent streams. As most low-gradient streams worldwide are neith...
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Eleonora Dallan, Andrea Bottacin-Busolin, Mattia Zaramella and Andrea Marion
Solute transport in rivers is controlled by mixing processes that occur over a wide spectrum of spatial and temporal scales. Deviations from the classic advection?dispersion model observed in tracer test studies are known to be generated by the temporary...
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Elisa Mammoliti, Davide Fronzi, Costanza Cambi, Francesco Mirabella, Carlo Cardellini, Emiliano Patacchiola, Alberto Tazioli, Stefano Caliro and Daniela Valigi
Carbonate aquifers are characterised by strong heterogeneities and their modelling is often a challenging aspect in hydrological studies. Understanding carbonate aquifers can be more complicated in the case of strong seismic events which have been widely...
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Sascha Frank, Thomas Heinze, Mona Ribbers and Stefan Wohnlich
Flow and transport processes in fractured systems are not yet fully understood, and it is challenging to determine the respective parameters experimentally. Studies on 10 samples of 2 different sandstones were used to evaluate the reproducibility of trac...
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Andrej Stroj, Maja Bri?ki, Jasmina Lukac Reberski and Tihomir Frangen
Tracer testing is the only method in karst hydrogeology that can definitively determine whether a particular site belongs to a watershed of a particular karst spring. Therefore, it is an essential technique for delineating groundwater basins in karst are...
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Jérôme de La Bernardie, Olivier Bour, Nicolas Guihéneuf, Eliot Chatton, Laurent Longuevergne and Tanguy Le Borgne
Experimental characterization of thermal transport in fractured media through thermal tracer tests is crucial for environmental and industrial applications such as the prediction of geothermal system efficiency. However, such experiments have been poorly...
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Emilio Sánchez-León, Carsten Leven, Daniel Erdal and Olaf A. Cirpka
Pumping and tracer tests are site-investigation techniques frequently used to determine hydraulic conductivity. Tomographic test layouts, in which multiple tests with different combinations of injection and observation wells are performed, gain a better ...
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Yuran Zhang, Anne E. Dekas, Adam J. Hawkins, John Carlo Primo, Oxana Gorbatenko and Roland N. Horne
Insufficient understanding of the microbial communities and associated microbial processes in geological reservoirs hinders the utilization of this rich data source for improved resource management. In this study, along with four interwell tracer tests a...
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Romain Deleu, Sandra Soarez Frazao, Amaël Poulain, Gaëtan Rochez and Vincent Hallet
Tracer tests are widely used for characterizing hydrodynamics, from stream-scale to basin-wide scale. In karstic environments, the positioning of field fluorometers (or sampling) is mostly determined by the on-site configuration and setup difficulties. M...
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Daniel Hernández-Cervantes, Xitlali Delgado-Galván, José L. Nava, P. Amparo López-Jiménez, Mario Rosales and Jesús Mora Rodríguez
In Water Distribution Networks, the chlorine control is feasible with the use of water quality simulation codes. EPANET is a broad domain software and several commercial computer software packages base their models on its methodology. However, EPANET ass...
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Paolo Viotti, Giuseppe Sappa, Fabio Tatti and Francesca Andrei
Zerovalent iron nanoparticles (nZVI) are becoming one of the most widely recommended nanomaterials for soil and groundwater remediation. However, when nZVI are injected in the groundwater flow, the behavior (mobility, dispersion, distribution) is practic...
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Hyoun-Tae Hwang, Sung-Wook Jeen, Ayman A. Suleiman and Kang-Kun Lee
This study compares saturated hydraulic conductivities (
K
s
K
s
) of three sandy soils such as coarse, medium and fine sand. The
K
s
K
s
was obtained using three different methods: empirical methods based on the grain size analysis, the relative effec...
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Zhimeng Zhao and Qinghe Wang
Preferential flow is the most common form of water loss occurring at the interface between rock and soil (hereinafter referred to as ?rock?soil interface?) in karst areas, and it is also one of the important factors causing soil water leakage into the un...
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Ricardo M. S. F. Almeida, Eva Barreira and Pedro Moreira
The measurement of ventilation rates is crucial in understanding buildings? performances, but can be a rather complex task due to the time-dependency of wind and buoyancy forces, which are responsible for the pressure differences that induce air movement...
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Antonio Teixeira de Matos, Mateus Pimentel de Matos, Renan de Almeida Costa, Marcos von Sperling
Pág. e36709
The aim of the present work was to evaluate the relationship between the hydraulic retention time power parameter (n) of the modified first-order kinetic mathematical model (MFOKM) with the hydraulic dispersion number (d) and the organic matter degradabi...
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Antonio Teixeira de Matos, Mateus Pimentel de Matos, Renan de Almeida Costa, Marcos von Sperling (Author)
Pág. e36709
The aim of the present work was to evaluate the relationship between the hydraulic retention time power parameter (n) of the modified first-order kinetic mathematical model (MFOKM) with the hydraulic dispersion number (d) and the organic matter degradabi...
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Vanessa Vaz de Oliveira, Marcos Vinícius Mateus, Julio Cesar de Souza Inácio Gonçalves, Alex Garcez Utsumi, Marcius Fantozzi Giorgetti
Pág. 291 - 299
Longitudinal dispersion coefficient (DL) is considered an essential physical parameter to water quality modeling in rivers. Therefore, the estimation of this parameter with high accuracy guarantees the reliability of the results of a water quality ...
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Bofu Zheng, Dan Wang, Yuxin Chen, Yihui Jiang, Fangqing Hu, Liliang Xu, Jihong Zhang and Jinqi Zhu
Background: Vegetation roots are considered to play an effective role in controlling soil erosion by benefiting soil hydrology and mechanical properties. However, the correlation between soil hydrology and the mechanical features associated with the vari...
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José Rivas, M. Constanza Sadino-Riquelme, Ignacio Garcés, Andrea Carvajal and Andrés Donoso-Bravo
Computational fluid dynamic (CFD) has been increasingly exploited for the design and optimization of (bio)chemical processes. Validation is a crucial part of any modeling application. In CFD, when validation is done, complex and expensive techniques are ...
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Jinxi Li, Jie Zheng, Jiang Zhu, Fangxin Fang, Christopher. C. Pain, Jürgen Steppeler, Ionel M. Navon and Hang Xiao
Advection errors are common in basic terrain-following (TF) coordinates. Numerous methods, including the hybrid TF coordinate and smoothing vertical layers, have been proposed to reduce the advection errors. Advection errors are affected by the direction...
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