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Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquent des phénomènes électriques, mécaniques, fluidiques et chimiques. Utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.

Consultez les proceedings de la Conference COMSOL 2024

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A Magnetohydrodynamic Study of a Inductive MHD Generator

A. Montisci[1] and R. Pintus[1]

[1]Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy

The aim of the proposed device is to overcome the typical drawbacks of MHD generators, such as the needed of a very high external magnetic field, the strong dependency of the efficiency by the temperature of the fluid, and the deterioration of the electrodes that are in contact with the ... En savoir plus

Fluid-Thermal Analysis of an Inverter with Air Cooling

R. V. Arimilli[1], A. H. Nejad[1], K. Ekici[1]
[1]The University of Tennessee, Knoxville, TN, USA

A new simple air-cooled inverter design is numerically investigated using COMSOL Multiphysics® software. The thermal-fluid analysis is based on a three-dimensional conjugate heat transfer model in which the flow field is assumed to be laminar. A rigorous mesh convergence was performed to ... En savoir plus

Design of Passive Micromixers using the COMSOL Multiphysics software package

M. Itomlenskis, P. Fodor, and M. Kaufman

Physics Department, Cleveland State University, Cleveland, OH, USA

Relief patterning of the surface of microchannels has been actively pursued as a method of promoting mixing in systems with a low Reynold’s number (<<100). In this work, we explore, by using the COMSOL Multiphysics package and its Chemical Engineering Module, the possibility of ... En savoir plus

Formation Of Porosities During Spot Laser Welding : Case Of Tantalum Joining

C. Touvrey
CEA Valduc, France

During the welding of tantalum with a ND: YAG pulsed laser, a deep and narrow cavity, called the keyhole, is formed. At the end of the process, surface tension forces provoke the collapse of the keyhole. For important interface deformations, gas bubbles can be trapped into the melting ... En savoir plus

COMSOL Multiphysics® Simulation of Energy Conversion and Storage Concepts Based on Oxide Crystals

C. Cherkouk[1], M. Zschornak[1], J. Hanzig[1], M. Nentwich[1], F. Meutzner[1], M. Urena[1], T. Leisegang[2], D. C. Meyer[1]
[1]Institute of Experimental Physics, Technische Universität Bergakademie, Freiberg, Germany
[2]Fraunhofer-Technologiezentrum, Freiberg, Germany

A mathematical model based on a finite element method (FEM) is presented as an initial approach for a system converting waste heat energy into chemical energy. This system consists of a pyroelectric LiNbO3 plate placed into a cylinder which undergoes a laminar water flow with an ... En savoir plus

The Use of CFD Simulations in Learning Fluid Mechanics at the Undergraduate Level

Marc K. Smith
Professor of Mechanical Engineering, Georgia Institute of Technology

Simple, accurate CFD simulations using COMSOL Multiphysics are used in a senior-level undergraduate course as a means to explore a number of fluid flows with the intent of developing a deep understanding of the underlying fluid mechanical mechanisms involved in the flows. Students also ... En savoir plus

The Influence of Sensor Technology on the Performance of Acoustic Leak Detection for Water Networks

S. Perrier¹, V. Burtea¹, B. Robertson¹, M. Moslemi¹, J. Butterfiled¹
¹Echologics, Toronto, ON, Canada

As water networks around the world age, leakage and water main breaks are becoming an increasing problem. Leakage rates of 10-30% are typical in North America, and most cities suffer from hundreds (or thousands) of water main breaks every year. Echologics has developed the EchoShore ... En savoir plus

Electrohydrodynamic Micropump Modeling for Performance Optimization

A. Mulye[1], S. Potnis[2]
[1]Northeastern University, Boston, MA, USA
[2]VIT, Mumbai, Maharashtra, India

We present an optimized and efficient design of an electrohydrodynamic (EHD) micropump for high performance in microscale and biological applications. We are targeting two major applications, a parylene C design for electrically-actuated medicine delivery, and a silicon-based pump design ... En savoir plus

Modeling of Viscous Fingering

E. Holzbecher[1]

[1]Georg-August University, Göttingen, Germany

Viscous fingering is a topic of interest since the beginning of computational fluid dynamics. Here we focus on the classical constellation of miscible displacement, as it has been investigated in Hele-Shaw cells. A temperature or salinity front is entering with a fluid that has a ... En savoir plus

Determination and Verification of the Forchheimer Coefficients for Ceramic Foam Filters using COMSOL CFD Modeling

M.W. Kennedy[1], K. Zhang[1], J.A. Bakken[1], R.E. Aune[1]
[1]Norwegian University of Science and Technology, Trondheim, Norway

Experiments have been conducted with water at velocities from ~0.015-0.77 m/s to determine the permeability of 50 mm thick commercially available 30, 40, 50 and 80 Pores Per Inch (PPI) Ceramic Foam Filters (CFF) used for liquid metal filtration. Measurements were made using two different ... En savoir plus

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