Publications associées à Écoulement polyphasique

Rock-Flow Cell Parameters Evaluation Using Ultrasound Doppler Velocimetry

Giovanni De Cesare, Javier Neves da Silva, Andre Luis Stakowian

This work presents a study of two-phase flow generated inside a rock-flow cell setup. It is characterized by a pipe section filled with fluid (oil in our studies) that is put into oscillation around its mass centre by an electric motor. This type of appara ...

2023

Measurement and modelling of dynamic fluid saturation in carbon reinforcements

Véronique Michaud, Baris Çaglar, Helena Luisa Teixido Pedarros, Guillaume Clément Broggi

We propose a methodology to monitor the progressive saturation of a non-translucent unidirectional carbon fabric stack through its thickness by means of X-ray radiography and extract the dynamic saturation curves using image analysis. Four constant flow ra ...

2023

Revisiting the role of friction coefficients in granular collapses: confrontation of 3-D non-smooth simulations with experiments

Gauthier Paul Daniel Marie Rousseau

In this paper, transient granular flows are examined both numerically and experimentally. Simulations are performed using the continuous three-dimensional (3-D) granular model introduced in Daviet & Bertails-Descoubes (ACM Trans. Graph., vol. 35, no. 4, 20 ...

Cambridge2023

Flow pattern observations and flow pattern map for adiabatic two-phase flow of carbon dioxide in vertical upward and downward direction

Jürg Alexander Schiffmann, Rémi Revellin, David Schmid

A test facility to investigate flow pattern transitions of vertical two-phase flow of CO2 has been built within the scope of the high-luminosity detector upgrades at the European Organization for Nuclear Research (CERN). Adiabatic flow pattern observations ...

2022

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

François Avellan, Ramiro Gustavo Ramirez Camacho

Many different types of branching have been developed, such as bifurcation, trifurcation, and manifolds, among others. These configurations are used in penstocks to transport water from surge tanks to power houses in order to feed several turbines at the s ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Modeling Solid-fluid Transitions in Snow Avalanches Using the Material Point Method

Johan Alexandre Philippe Gaume, Alec van Herwijnen

Snowslab avalanches start with the failure of a weak snow layer buried below a cohesive snow slab. After failure,the very porous character of the weak layer leads toits volumetric collapse and thus closing of crack facesdue to the weight of the overlaying ...

2019

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Anton Schleiss, Giovanni De Cesare, Michael Müller

In pumped-storage reservoirs, turbulent kinetic energy input from plant operation can be considerably high. Flow velocities were measured by Acoustic Doppler Current Profilers near the intake/outlet structure to describe flow patterns induced by pumped-sto ...

2018

Pressure drop prediction in annular two-phase flow in macroscale tubes and channels

John Richard Thome, Andrea Cioncolini

A new prediction method for the frictional pressure drop in annular two-phase flow is presented. This new prediction method focuses on the aerodynamic interaction between the liquid film and the gas core in annular flows, and explicitly takes into account ...

Pergamon-Elsevier Science Ltd2017

An updated three-zone heat transfer model for slug flow boiling in microchannels

John Richard Thome, Mirco Magnini

This work proposes a novel physics-based model for the fluid mechanics and heat transfer associated with slug flow boiling in horizontal circular microchannels to update the widely used three-zone model of Thome et al. (2004). The heat transfer model has a ...

Pergamon-Elsevier Science Ltd2017

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Écoulement polyphasique

Rock-Flow Cell Parameters Evaluation Using Ultrasound Doppler Velocimetry

Measurement and modelling of dynamic fluid saturation in carbon reinforcements

Revisiting the role of friction coefficients in granular collapses: confrontation of 3-D non-smooth simulations with experiments

Flow pattern observations and flow pattern map for adiabatic two-phase flow of carbon dioxide in vertical upward and downward direction

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

Efficient numerical representation of the impacts of flexible plant reconfiguration on canopy posture and hydrodynamic drag

Modeling Solid-fluid Transitions in Snow Avalanches Using the Material Point Method

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Pressure drop prediction in annular two-phase flow in macroscale tubes and channels

An updated three-zone heat transfer model for slug flow boiling in microchannels

Graph Chatbot

Chattez avec Graph Search

Measurement and modelling of dynamic fluid saturation in carbon reinforcements

Numerical analysis for detecting head losses in trifurcations of high head in hydropower plants

Rock-Flow Cell Parameters Evaluation Using Ultrasound Doppler Velocimetry

An updated three-zone heat transfer model for slug flow boiling in microchannels

Revisiting the role of friction coefficients in granular collapses: confrontation of 3-D non-smooth simulations with experiments

Flow pattern observations and flow pattern map for adiabatic two-phase flow of carbon dioxide in vertical upward and downward direction

Efficient numerical representation of the impacts of flexible plant reconfiguration on canopy posture and hydrodynamic drag

Modeling Solid-fluid Transitions in Snow Avalanches Using the Material Point Method

Flow field in a reservoir subject to pumped-storage operation - in situ measurement and numerical modeling

Pressure drop prediction in annular two-phase flow in macroscale tubes and channels