Publications associées à Coefficient de diffusion

Quantitative measurement and comparison of breakthroughs inside the gas diffusion layer using lattice Boltzmann method and computed tomography scan

Jan Van Herle, Emad Oveisi, Hossein Pourrahmani, Hamza Moussaoui

In Proton Exchange Membrane Fuel Cells (PEMFCs), the presence of residual water within the Gas Diffusion Layer (GDL) poses challenges during cold starts and accelerates degradation. A computational model based on the Lattice Boltzmann Method (LBM) was deve ...

Nature Portfolio2024

Predicting Ion Diffusion from the Shape of Potential Energy Landscapes

Berend Smit, Senja Dominique Barthel, Amber Kashan Mace

We present an efficient method to compute diffusion coefficients of multiparticle systems with strong interactions directly from the geometry and topology of the potential energy field of the migrating particles. The approach is tested on Li-ion diffusion ...

Washington2023

Morphology and Transport Characterization of Catalyst Layers for CO2 Reduction

Sophia Haussener, Francesca Lorenzutti

Gas diffusion electrodes (GDEs) help to reduce transport limitations in devices for electrochemical CO2 reduction. Homogenized modeling of such devices requires input of morphological characteristics and effective transport properties of the porous structu ...

2023

Brokering between tenants for an international materials acceleration platform

Giovanni Pizzi, Ivano Eligio Castelli, Francisco Fernando Ramirez

The efficient utilization of resources in accelerated materials science necessitates flexible, reconfigurable software-defined research workflows. We demonstrate a brokering approach to modular and asynchronous research orchestration to integrate multiple ...

CELL PRESS2023

Experimental and numerical investigations of electron transport enhancement by electron-cyclotron plasma-wave interaction in tokamaks

Stefano Coda, Laurent Villard, Laurie Porte, Joan Decker, Giovanni Di Giannatale, Aylwin Iantchenko, Jean Arthur Cazabonne

Energy transfer from electron-cyclotron (EC) waves to the plasma is being routinely used in tokamaks to heat and drive current through the electron channel. Technical applications such as magnetohydrodynamic mode mitigation require power deposition with a ...

IOP Publishing Ltd2023

Transport across thin membranes: Effective solute flux jump

François Gallaire, Pier Giuseppe Ledda, Giuseppe Antonio Zampogna

A model to describe the transport across membranes of chemical species dissolved in an incompressible flow is developed via homogenization. The asymptotic matching between the microscopic and macroscopic solute concentration fields leads to a solute flux j ...

AIP Publishing2022

Compact Model for Continuous Microfluidic Mixer

Jean-Michel Sallese, Christophe Lallement

While the development of lab-on-chip is increasing, the lack of dedicated computer-aided design tools appears as a bottleneck preventing the emergence of large-scale industrial applications. One of the answer relied on 50 years of CAD experience in microel ...

IEEE2020

Unravelling chloride transport/microstructure relationships for blended-cement pastes with the mini-migration method

Karen Scrivener, Fabien Jacques Michel Georget, William Wilson

A chloride mini-migration method is proposed to estimate effective diffusion coefficients at the scale of the cement paste and to investigate mechanisms with complementary microstructure analyses on the same material. Blended-cement pastes with a wide rang ...

2020

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Coefficient de diffusion

Quantitative measurement and comparison of breakthroughs inside the gas diffusion layer using lattice Boltzmann method and computed tomography scan

Predicting Ion Diffusion from the Shape of Potential Energy Landscapes

Morphology and Transport Characterization of Catalyst Layers for CO2 Reduction

Brokering between tenants for an international materials acceleration platform

Experimental and numerical investigations of electron transport enhancement by electron-cyclotron plasma-wave interaction in tokamaks

Transport across thin membranes: Effective solute flux jump

Temperature- and vacancy-concentration-dependence of heat transport in Li3ClO from multi-method numerical simulations

Estimating the non-dimensional energy of vortex rings by modelling their roll-up

Compact Model for Continuous Microfluidic Mixer

Unravelling chloride transport/microstructure relationships for blended-cement pastes with the mini-migration method

Graph Chatbot

Chattez avec Graph Search

Morphology and Transport Characterization of Catalyst Layers for CO2 Reduction

Predicting Ion Diffusion from the Shape of Potential Energy Landscapes

Transport across thin membranes: Effective solute flux jump

Temperature- and vacancy-concentration-dependence of heat transport in Li3ClO from multi-method numerical simulations

Brokering between tenants for an international materials acceleration platform

Estimating the non-dimensional energy of vortex rings by modelling their roll-up

Experimental and numerical investigations of electron transport enhancement by electron-cyclotron plasma-wave interaction in tokamaks

Compact Model for Continuous Microfluidic Mixer

Unravelling chloride transport/microstructure relationships for blended-cement pastes with the mini-migration method