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David Andrew Barry

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Publications associées (225)

Evaluation of silicate minerals for pH control during bioremediation: Application to chlorinated solvents

Christof Holliger, David Andrew Barry, Alessandro Brovelli, Elsa Marina Lacroix

Accurate control of groundwater pH is of critical importance for in situ biological treatment of chlorinated solvents. This study evaluated a novel approach for buffering subsurface pH that relies on the use of silicate minerals as a long-term source of al ...

2012

Erosion of soils due to rainfall impact – An interpolation method

Marc Parlange, David Andrew Barry, Alessandro Brovelli, Seifeddine Jomaa

An approximate analytical solution of the Hairsine-Rose model of erosion is obtained by interpolation of asymptotic expressions for large times and great distances. The solution, when erosion is initiated by rainfall impact, is both simple and accurate. Th ...

Wiley-Blackwell2012

Parsimonious hydrological modeling of urban sewer and river catchments

Luca Rossi, David Andrew Barry, Sylvain Coutu, Dario Del Giudice

A parsimonious model of flow capable of simulating flow in natural/engineered catchments and at WWTP (Wastewater Treatment Plant) inlets was developed. The model considers three interacting, dynamic storages that account for transfer of water within the sy ...

Elsevier2012

Analysis of carbon and nitrogen dynamics in riparian soils: Model validation and sensitivity to environmental controls

Pascal Niklaus, David Andrew Barry, Alessandro Brovelli, Jordi Batlle-Aguilar

The Riparian Soil Model (RSM) of Brovelli et al. (Sci. Total Environ., this issue) was applied to study nutrient turnover in a revitalized section of the Thur River, North-East Switzerland. The model was first calibrated on field experimental data. The mod ...

Elsevier2012

Influence of rock fragment coverage on soil erosion and hydrological response: Laboratory flume experiments and modeling

David Andrew Barry, Alessandro Brovelli, Seifeddine Jomaa

Two laboratory flume experiments on the effect of surface rock fragments on precipitation-driven soil erosion yields were carried out. The total sediment concentration, the concentration of seven individual size classes and the flow discharge were measured ...

American Geophysical Union2012

An application of Evolutionary Optimization Algorithms for Determining Concentration and Velocity Profiles in Sheet flows and Overlying Layers

David Andrew Barry, Roham Bakhtyar

The Particle Swarm Optimization (PSO) method and the Genetic Algorithm (GA) were used to derive formulas for determining the velocity and concentration profiles in sheet flows. Specifically, these evolutionary optimization algorithms were used in conjuncti ...

Asme-Amer Soc Mechanical Eng2012

Has the Three-Gorges Dam made the Poyang Lake wetlands wetter and drier?

David Andrew Barry

The Three-Georges Dam holds many records in the history of engineering. While the dam has produced benefits in terms of flood control, hydropower generation and increased navigation capacity of the Yangtze River, serious questions have been raised concerni ...

American Geophysical Union2012

Modeling of facade leaching in urban catchments

Luca Rossi, David Andrew Barry, Sylvain Coutu, Dario Del Giudice

Building facades are protected from microbial attack by incorporation of biocides within them. Flow over facades leaches these biocides and transports them to the urban environment. A parsimonious water quantity/quality model applicable for engineered urba ...

American Geophysical Union2012

Parsimonious hydrological modelling in urban areas: Towards integrated modelling

Luca Rossi, David Andrew Barry, Sylvain Coutu, Dario Del Giudice

Most popular urban hydrological model used in research and engineering (e.g. MOUSE, SWMM, MUSIC,P8) are spatially distributed with linknode drainage network. If some of them (e.g. PURPS, RUNQUAL, SLAMM, StormTac and WBM) treat the catchment in a lumped fas ...

International Water Association2012

Effects of soil stratigraphy on pore-water flow in a creek-marsh system

David Andrew Barry

In coastal marshes, low-permeability mud is often found overlying high permeability sandy deposits. A recently developed 3D creek-marsh model was used to investigate the effects of soil stratigraphy (a mud layer overlying a sandy-loam layer) on pore-water ...

2012

Coupled effects of canal lining and multi-layered soil structure on canal seepage and soil water dynamics

David Andrew Barry

Ponding tests were conducted in the Shiyang River Basin in Northwest China to assess canal leakage characteristics. Four anti-seepage constructions (concrete lining, pebble lining, clay lining plus compacted canal bed, compacted canal bed only) were perfor ...

2012

Comment on “Experimental observations of saltwater up-coning”

David Andrew Barry, Hong Zhang

2012

Hyporheic flow under periodic bed forms influenced by low-density gradients

David Andrew Barry

Small density variations due to low solute concentrations in the stream water commonly exist in streams and rivers. Using laboratory experiments and numerical modeling, we demonstrated that even such small density variations could influence the hyporheic f ...

American Geophysical Union2011

Samplinghelper a web-based tool to assess the reliability of sampling strategies in sewers and receiving waters

Nathalie Chèvre Rossi, Luca Rossi, David Andrew Barry

Sampling is a key step in the analysis of chemical compounds. It is particularly important in the environmental field, for example for wastewater effluents, wet-weather discharges or streams in which the flows and concentrations vary greatly over time. In ...

IWA Publishing2011

Numerical experiments of breaking waves on dissipative and intermediate beaches using a two-phase flow method

David Andrew Barry, Roham Bakhtyar

A fully coupled two-phase flow model was developed to simulate nearshore fluid-sediment turbulent flow. It includes the Reynolds-Averaged Navier-Stokes equations and turbu¬lent stress closures for each phase, and accounts for inter-granular stresses. It wa ...

2011

Analysis of time compression approximations

Marc Parlange, David Andrew Barry

TCA, time compression approximation, is a practical and often quite accurate tool to predict postponding infiltration for field applications. A modified approximation (MTCA) can be used just as easily and, in general, will reduce the error by about 50%. Th ...

American Geophysical Union2011

Wave-induced watertable fluctuations, sediment transport and beach profile change: Modeling and comparison with large-scale laboratory experiments

David Andrew Barry, Alessandro Brovelli, Roham Bakhtyar

Coastal groundwater systems can have a considerable impact on sediment transport and foreshore evolution in the surf and swash zones. Process-based modeling of wave motion on a permeable beach taking into account wave-aquifer interactions was conducted to ...

Elsevier2011

Numerical Simulation of Two-Phase Flow for Nearshore Hydrodynamics under Wave-Current Interactions

David Andrew Barry, Roham Bakhtyar, Amir Mehdi Razmi

Surf and swash zone hydrodynamics are complex, being composed of a highly energetic water-air mixture under periodically unsteady motion. Wave-current interactions have a major effect on the results of hydrodynamic simulations, and consequently on predicti ...

Coastal Education and Research Foundation2011

Tidally driven multiscale pore water flow in a creek-marsh system

David Andrew Barry

Intertidal wetlands are complex hydrological systems characterized by strong, dynamic interactions between coastal surface water and groundwater, driven particularly by tides. We simulated such interactions with a focus on three-dimensional, variably satur ...

American Geophysical Union2011

Modelling soil carbon and nitrogen cycles during land use change. A review

David Andrew Barry, Alessandro Brovelli, Jordi Batlle-Aguilar

Forested soils are being increasingly transformed to agricultural fields in response to growing demands for food crop. This modification of the land use is known to result in deterioration of soil properties, in particular its fertility. To reduce the impa ...

EDP Sciences2011

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