Publications related to Dissipation of boundary-induced flow disturbances in cylindrical soil columns

Influence of Tributary Widening on Confluence Morphodynamics

In alpine regions of Europe, river training works were typically the reason for the transformation of wide and braided rivers into linear river systems with a lack of structural diversity, i.e. gravel banks, islands, woody debris, riffles or pools. These i ...

EPFL2011

Density tagging velocimetry

Karen Ann J Mulleners, Andreas Schröder

Density tagging velocimetry, a novel optical technique for point-wise measurement of flow velocity is proposed here. This new method is based on the detection and subsequent tracking of a local density variation deliberately inserted in the flow. The exper ...

2011

Multiscale Computational Methodology Applied to Hydroacoustic Resonance in Cavitating Pipe Flow

Nicolas Ruchonnet

The present work is a contribution to the physical analysis and numerical simulation of the pressure surges in hydraulic machinery and connected conduit systems. Localized hydrodynamic instabilities including cavitation are prone to interact with the entir ...

EPFL2010

Leaching and transformability of transgenic DNA in unsaturated soil columns

Unsaturated soil columns were used to examine the transport of the plasmid pLEPO1 and plant DNA (transplastomic tobacco DNA), both carrying an antibiotic resistance gene (aadA gene), and the capacity of bacteria to incorporate the gene in their genome afte ...

2010

Analysis of the role of turbulence in curved open-channel flow at different water depths by means of experiments, LES and RANS

Koen Blanckaert

In order to unravel the main flow and secondary flow characteristics and the role of turbulence in a curved single-bend open-channel flow, large-eddy simulations (LES) and Reynolds-averaged numerical simulations (RANS) were carried out and compared with ex ...

Taylor & Francis2010

Effect of nonuniform boundary conditions on steady flow in saturated homogeneous cylindrical soil columns

David Andrew Barry

Laboratory column experiments involving steady flow in homogeneous soil are often analyzed assuming that the flow is spatially uniform in any plane transverse to the longitudinal axis aligned with the column centerline. Axisymmetric steady flow in such a c ...

2009

Transitional cylindrical swirling flow in presence of a flat free surface

Roland Bouffanais, David Lo Jacono

This article is devoted to the study of an incompressible viscous flow of a fluid partly enclosed in a cylindrical container with an open top Surface and driven by the constant rotation of the bottom wall. Such type of flows belongs to a group of recircula ...

2009

Gravity-driven slug motion in capillary tubes

Dani Or, Ivan Lunati

The velocity of a liquid slug falling in a capillary tube is lower than predicted for Poiseuille flow due to presence of menisci, whose shapes are determined by the complex interplay of capillary, viscous, and gravitational forces. Due to the presence of m ...

2009

Sandwich mixer–reactor: influence of the diffusion coefficient and flow rate ratios

Hubert Girault, Mélanie Abonnenc

A sandwich mixer consists of mixing two solutions in a channel, one central laminar flow being sandwiched between two outer flow solutions. The present numerical study considers the convection– diffusion of two reacting species A and B, provided respective ...

2009

Liquid–liquid two-phaseflow patterns andmasstransfer characteristics inrectangular glassmicroreactors

Albert Renken, Lioubov Kiwi, Anne-Laure Dessimoz

The flow of two immiscible fluids was investigated in rectangular glass microchannels with equivalent diameters of 269 and 400

\mu m

. Deionised water, dyed toluene and hexane were selected as probe fluids. Flow patterns were obtained for Y- and T-junction ...

2008

Dissipation of boundary-induced flow disturbances in cylindrical soil columns

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Influence of Tributary Widening on Confluence Morphodynamics

Density tagging velocimetry

Multiscale Computational Methodology Applied to Hydroacoustic Resonance in Cavitating Pipe Flow

Leaching and transformability of transgenic DNA in unsaturated soil columns

Analysis of the role of turbulence in curved open-channel flow at different water depths by means of experiments, LES and RANS

Effect of nonuniform boundary conditions on steady flow in saturated homogeneous cylindrical soil columns

Transitional cylindrical swirling flow in presence of a flat free surface

Gravity-driven slug motion in capillary tubes

Sandwich mixer–reactor: influence of the diffusion coefficient and flow rate ratios

Liquid–liquid two-phaseflow patterns andmasstransfer characteristics inrectangular glassmicroreactors

Multiscale Computational Methodology Applied to Hydroacoustic Resonance in Cavitating Pipe Flow

Influence of Tributary Widening on Confluence Morphodynamics

Gravity-driven slug motion in capillary tubes

Analysis of the role of turbulence in curved open-channel flow at different water depths by means of experiments, LES and RANS

Sandwich mixer–reactor: influence of the diffusion coefficient and flow rate ratios

Leaching and transformability of transgenic DNA in unsaturated soil columns

Density tagging velocimetry

Transitional cylindrical swirling flow in presence of a flat free surface

Effect of nonuniform boundary conditions on steady flow in saturated homogeneous cylindrical soil columns

Liquid–liquid two-phaseflow patterns andmasstransfer characteristics inrectangular glassmicroreactors