Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

3D Modeling of Hydrogen Absorption in Metal Hydride Hydrogen Storage Bottles

R. Busqué [1], R. Torres [1], A. Husar [2], J. Grau [1]
[1] Escola Universitària d'Enginyeria Tècnica Industrial de Barcelona, Barcelona, Spain
[2] Institut de Robòtica i Informàtica Industrial CSIC-UPC, Barcelona, Spain

The storage of hydrogen as an absorbed element in metal hydride bottles is a promising technique for energy storage. In this work, a three-dimensional model of a charging process in a metal hydride container has been developed to simulate the absorption reaction and resultant heat and mass transport phenomena in metal hydride vessels. The model has been experimentally validated showing a good ...

A Modified Koutecký-Levich Equation for the Analysis of Electrochemical Flow Cells with Complex Geometries

S. A. Tschupp [1], S. E. Temmel [1], N. Poyatos Salguero [1], J. Herranz [1], T.J. Schmidt [2],
[1] Paul Scherrer Institut, Villigen, Switzerland
[2] ETH Zürich, Zürich, Switzerland

Electrochemical flow cells have found widespread use in analytical chemistry due to their short response time, high sensitivity and selectivity. The geometrical flexibility and therefore, the ease of coupling the electrochemical to other experimental techniques has attracted considerable interest for applications in electrocatalytic research as well. Such coupling is far more cumbersome with the ...

Numerical Simulations of a Subsonic/Supersonic Coaxial Jet for an Efficient Design of Experimental Setup - new

D. Guariglia[1], C. Schram[1]
[1]von Karman Institute for Fluid Dynamics, Sint-Genesius-Rode, Belgium

The flow field of a coaxial jet with the internal (primary) flow being subsonic and the external (secondary) flow being supersonic has been investigated with COMSOL Multiphysics® software. We used the results to correct defects in the nozzle geometry and we evaluated the effect of heat transfer on the shock-cells system. Finally, we verified the stresses in the material to avoid permanent ...

Pneumo-Hydrodynamic Droplet Generation

V. Mamet [1], P. Namy [2], N. Berri [1], L. Tatoulian [1], P. Ehouarn [1], V. Briday [1], P. Clemenceau [2], B. Dupont [1]
[1] DBV Technologies, Bagneux, France
[2] SIMTEC, Grenoble, France

Introduction Droplet-based microfluidics is a large source of research for scientists of new biotechnologies, aerosols or other 2D-Microfluidics devices. Here, we will focus on an industrial application of a 3D microfluidic device : the PH2DG, Pneumo-HydroDynamic Droplet Generator. The aim of the process is to produce mono-disperse, regular pattern of droplets, with a minimum size. To use it in ...

Copper Electrochemical Polishing Optimisation

A. Pérez Rodríguez [1], L. Marques Antunes Ferreira [1],
[1] CERN, Geneva, Switzerland

A new electrochemical polishing facility will be built at CERN to process copper radiofrequency structures and this in the framework of the Future Circular Collider study. This polishing installation will be designed and assembled so that the necessary working conditions to achieve the ultimate limits of this technique are ensured. The main working variables like potential, current density, bath ...

Modeling Fluid-Structure Interaction in a Pressure-Controlled Current-Limiting Valve

N. Mügge [1], A. Waschke [1], L. Fromme [1], M. Petry [1],
[1] Bielefeld University of Applied Sciences, Department of Engineering Sciences and Mathematics, Bielefeld, Germany

This assignment deals with the modeling of a pressure controlled current-limiting valve. For this purpose the CAE-Software COMSOL Multiphysics® is used. Current-limiting valves are used as a measure of safety in many hydraulic applications. They are deployed in cases of a high decrease in pressure due to a burst pipe or leaks. The chief aim of this project is to find a beneficial modeling ...

Modeling of Laminar Flow Static Mixers

N. Elabbasi[1], X. Liu[1], S. Brown[1], M. Vidal[2], M. Pappalardo[2]
[1]Veryst Engineering LLC, Needham, MA, USA
[2]Nordson EFD, East Providence, RI, USA

Laminar flow static mixers are accurate, inexpensive fluid mixing devices that can handle a wide range of fluids and mixing proportions. They have a wide range of industrial applications, especially in the consumer product, pharmaceutical, biomedical, and petrochemical industries. A good mixing quality is obtained when the outlet of the mixer has no concentrated volumes of either mixed materials ...

Development of a Thermal Model Using COMSOL Multiphysics® Software

A. Oukaira [1], A. Lakhssassi [1],
[1] Department of Computer Science, Université du Québec en Outaouais à Hull, Gatineau, QC, Canada

The Purpose of this paper is to develop a thermal model using COMSOL Multiphysics® software that aims to get an idea of the heat flow around the ASIC, as well as to address the thermal issues for integrated circuits at the tongue board. However, we need sources of heat simulations to map the tab to establish its thermal mapping. This led us to perform simulations at each ASIC of the tab that ...

Heat Transfer Modeling for Thermal Stimulation of Near Wellbore Using COMSOL Multiphysics®

M. Mohammed [1],
[1] Freiberg University of Mining and Technology, Sachsen, Germany

The performance of the oil reservoir is decisively determined by the hydraulic permeability of the rock and the possible flow paths. During the production phase, the petrophysical properties of the rock may deteriorate due to highly viscous oil deposits, especially in the near of the borehole. Therefore, it is a challenge to restore the permeability in this area. In order to remove the deposits ...

Modeling of Asphaltenes and Oil Shale Pyrolysis - new

J. P. Mmbaga[1], F. Munoz[2], S. Dhir[1], R. Gupta[1], R. E. Hayes[1], M. Toledo[2]
[1]University of Alberta, Edmonton, AB, Canada
[2]Departamento de Ingenieria Mecanica, Universidad Tecnica Federico Santa Maria, Valparaiso, Chile

Pyrolysis is a key step in the conversion of carbonaceous materials into useful products. In this study, we investigate the pyrolysis of asphaltene and oil shale, both experimentally and numerically. COMSOL Multiphysics® software is used to model the combined effects of fluid flow in porous media, mass transfer of species, heat transfer, and reaction kinetics. Gas evolution and the porosity ...