Publications associées à Bulle (physique)

A Flexible Coupled Level Set and Volume of Fluid (flexCLV) method to simulate microscale two-phase flow in non-uniform and unstructured meshes

John Richard Thome, Mirco Magnini, Andrea Ferrari

An innovative Flexible Coupled Level Set (LS) and Volume of Fluid (VOF) algorithm (flexCLV) to simulate two-phase flows at the microscale on unstructured and non-uniform meshes is proposed. The method combines the advantages of the VOF method in terms of m ...

Pergamon-Elsevier Science Ltd2017

Pore-scale analysis of the minimum liquid film thickness around elongated bubbles in confined gas-liquid flows

John Richard Thome, Alessio Ferrari, Mirco Magnini, Albert Matthias Beisel

The fluid mechanics of elongated bubbles in confined gas-liquid flows in micro-geometries is important in pore-scale flow processes for enhanced oil recovery and mobilization of colloids in unsaturated soil. The efficiency of such processes is traditionall ...

Elsevier Sci Ltd2017

On the Coherence in the Boundary Layer: Development of a Canopy Interface Model

Dasaraden Mauree, Alain Clappier

A 1D Canopy Interface Model (CIM) is developed to act as an interface between a meso-scale and a micro-scale atmospheric model and to better resolve the surface turbulent fluxes in the urban canopy layer. A new discretisation is proposed to solve the TKE e ...

Frontiers Media Sa2017

Use of gas bubbles for ultrasound Doppler flow velocity profile measurement

Giovanni De Cesare, Tobias Meile

Ultrasonic velocimetry based on the Doppler shift effect accurately provides quasi-instantaneous flow fields for fluids with a sufficiently high acoustic scattering level. However, ultrasonic velocity instruments are known to perform poorly in clear water ...

Elsevier2016

RANS computations for identification of 1-D cavitation model parameters: application to full load cavitation vortex rope

François Avellan, Christophe Nicolet, Andres Müller, Sébastien Alligné

Due to the massive penetration of alternative renewable energies, hydropower is a key energy conversion technology for stabilizing the electrical power network by using hydraulic machines at off design operating conditions. At full load, the axisymmetric c ...

International Association For Hydraulic Research2016

A CFD study of the parameters influencing heat transfer in microchannel slug flow boiling

John Richard Thome, Mirco Magnini

Boiling heat transfer in microchannels has been investigated extensively in the last two decades. However, most results from independent experimental studies display a substantial disagreement on the influence of the flow conditions and mechanisms on the h ...

Elsevier France-Editions Scientifiques Medicales Elsevier2016

Scaling laws for jets of single cavitation bubbles

Mohamed Farhat, Nicolas Dorsaz, Danail Obreschkow, Philipp Kobel, Outi Supponen, Marc Tinguely

Fast liquid jets, called micro-jets, are produced within cavitation bubbles experiencing an aspherical collapse. Here we review micro-jets of different origins, scales and appearances, and propose a unified framework to describe their dynamics by using an ...

Cambridge University Press2016

Simulation of bubble expansion and collapse in the vicinity of a free surface

Mohamed Farhat, Outi Supponen

The present paper focuses on the numerical simulation of the interaction of laser-generated bubbles with a free surface, including comparison of the results with instances from high-speed videos of the experiment. The Volume Of Fluid method was employed fo ...

Amer Inst Physics2016

An Enhanced Physically Based Scour Model for Considering Jet Air Entrainment

Anton Schleiss, Rafael Xavier Meriade Duarte

Based on systematic experiments on the influence of air entrainment on rock block stability in plunge pools impacted by high-velocity jets, this study presents adaptations of a physically based scour model. The modifications regarding jet aeration are impl ...

Elsevier Science Bv2016

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Bulle (physique)

A Flexible Coupled Level Set and Volume of Fluid (flexCLV) method to simulate microscale two-phase flow in non-uniform and unstructured meshes

MATHICSE Technical Report : A Hele-Shaw-Cahn-Hilliard model for incompressible two-phase flows with different densities

Pore-scale analysis of the minimum liquid film thickness around elongated bubbles in confined gas-liquid flows

On the Coherence in the Boundary Layer: Development of a Canopy Interface Model

Use of gas bubbles for ultrasound Doppler flow velocity profile measurement

RANS computations for identification of 1-D cavitation model parameters: application to full load cavitation vortex rope

A CFD study of the parameters influencing heat transfer in microchannel slug flow boiling

Scaling laws for jets of single cavitation bubbles

Simulation of bubble expansion and collapse in the vicinity of a free surface

An Enhanced Physically Based Scour Model for Considering Jet Air Entrainment

Graph Chatbot

Chattez avec Graph Search

On the Coherence in the Boundary Layer: Development of a Canopy Interface Model

A Flexible Coupled Level Set and Volume of Fluid (flexCLV) method to simulate microscale two-phase flow in non-uniform and unstructured meshes

An Enhanced Physically Based Scour Model for Considering Jet Air Entrainment

Pore-scale analysis of the minimum liquid film thickness around elongated bubbles in confined gas-liquid flows

Use of gas bubbles for ultrasound Doppler flow velocity profile measurement

RANS computations for identification of 1-D cavitation model parameters: application to full load cavitation vortex rope

A CFD study of the parameters influencing heat transfer in microchannel slug flow boiling

Scaling laws for jets of single cavitation bubbles

Simulation of bubble expansion and collapse in the vicinity of a free surface

MATHICSE Technical Report : A Hele-Shaw-Cahn-Hilliard model for incompressible two-phase flows with different densities