Publications related to Analytical method to predict two-phase flow pattern in horizontal micro-capillaries

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

Flow and bathymetry in sharp open-channel bends: Experiments and predictions

Koen Blanckaert, Serban George Constantinescu

This paper focuses on experiments and simulations conducted in very sharp open-channel bends with flat and equilibrium bathymetry, corresponding to the initial and final phases of the erosion and deposition processes, respectively. The study of flow in cur ...

2008

Scaling of capillary, gravity and viscous forces affecting flow morphology in unsaturated porous media

Dani Or

Interplay between capillary, gravity and viscous forces in unsaturated porous media gives rise to a range of complex flow phenomena affecting morphology, stability and dynamics of wetting and drainage fronts. Similar average phase contents may result in si ...

2008

Mass-based depth and velocity scales for gravity currents and related flows

Anton Schleiss

Gravity driven flows on inclines can be caused by cold, saline or turbid inflows into water bodies. Another example are cold downslope winds, which are caused by cooling of the atmosphere at the lower boundary. In a well-known contribution, Ellison and Tur ...

2008

Analysis of large scale hydrodynamic phenomena in turbine draft tubes

Monica Iliescu

Hydraulic power is a renewable energy with a very advantageous price, and its flexibility of use coupled with its storage possibilities easily enables to meet the peak demand. Refurbishment of old hydraulic power plants is an important topical issue and th ...

EPFL2007

Unsteady Numerical Simulations of the Flow Related to the Unstable Energy-Discharge Characteristic of a Medium Specific Speed Double Suction Pump

François Avellan, Olivier Braun, Philippe Dupont

Regions of positive slope in the pressure-discharge characteristics can result in a reduction or even lack of damping of system instabilities. They are therefore one of the major concerns in design and operation of centrifugal pumps as they are limiting th ...

2007

Interfacial interactions and colloid retention under steady flows in a capillary channel

Dani Or, Yan Jin

Colloidal interfacial interactions in a capillary channel under different chemical and flow conditions were studied using confocal microscopy. Fluorescent latex microspheres (1.1 mu m) were employed as model colloids and the effects of ionic strength and f ...

Elsevier2006

Experiments investigating the effects of fluid elasticity on laminar vortex shedding from a cylinder

Experiments on vortex shedding from a cylinder placed in uniform flows of low concentration polymer solutions are reported for Reynolds numbers from 50 to 150. The fluids used were aqueous solutions of polyethylene oxide (PEO) and rheological characterizat ...

EPFL2005

Dynamics of magnetically retained supraparticle structures in a liquid flow

Martinus Gijs, Amar Rida

We study the dynamic motion of magnetic structures composed of micron-size ferromagnetic particles. The supraparticle structures are retained in a microfluidic channel by a local oscillating magnetic field while subjected to a viscous liquid flow. We analy ...

2004

Modeling and Analysis of Helicoidal Flow in a Conical Extruder

The present paper discusses the uniqueflow behavior in a new type of extruder. The extruder design is based on a hollow conical assembly of static (stators) and rotating (rotor) parts. Extrusion is achieved from each side of the rotor to provide a two-laye ...

2003

Analytical method to predict two-phase flow pattern in horizontal micro-capillaries

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Liquid–liquid two-phaseflow patterns andmasstransfer characteristics inrectangular glassmicroreactors

Flow and bathymetry in sharp open-channel bends: Experiments and predictions

Scaling of capillary, gravity and viscous forces affecting flow morphology in unsaturated porous media

Mass-based depth and velocity scales for gravity currents and related flows

Analysis of large scale hydrodynamic phenomena in turbine draft tubes

Unsteady Numerical Simulations of the Flow Related to the Unstable Energy-Discharge Characteristic of a Medium Specific Speed Double Suction Pump

Interfacial interactions and colloid retention under steady flows in a capillary channel

Experiments investigating the effects of fluid elasticity on laminar vortex shedding from a cylinder

Dynamics of magnetically retained supraparticle structures in a liquid flow

Modeling and Analysis of Helicoidal Flow in a Conical Extruder

Modeling and Analysis of Helicoidal Flow in a Conical Extruder

Experiments investigating the effects of fluid elasticity on laminar vortex shedding from a cylinder

Unsteady Numerical Simulations of the Flow Related to the Unstable Energy-Discharge Characteristic of a Medium Specific Speed Double Suction Pump

Analysis of large scale hydrodynamic phenomena in turbine draft tubes

Interfacial interactions and colloid retention under steady flows in a capillary channel

Dynamics of magnetically retained supraparticle structures in a liquid flow

Liquid–liquid two-phaseflow patterns andmasstransfer characteristics inrectangular glassmicroreactors

Flow and bathymetry in sharp open-channel bends: Experiments and predictions

Mass-based depth and velocity scales for gravity currents and related flows

Scaling of capillary, gravity and viscous forces affecting flow morphology in unsaturated porous media