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Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

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Thermal Simulation and Package Investigation of Wireless Gas Sensors

A. Paoli[1], L. Seminara[2], D.D. Caviglia[1], A. Garibbo[2], and M. Valle[1]

[1]Department of Biophysical and Electronic Engineering, University of Genova, Genova, Italy
[2]SELEX Communications S.p.A., Genova, Italy

Gas sensor arrays based on metal oxides operating at high temperature are commonly used in many application fields. They can operate on different principles and each sensor may show very different responses to the individual gases in the environment. Data coming from the array can be ... En savoir plus

Thermomagnetic Siphoning on a Bundle of Current-Carrying Wires

J.C. Boulware, and S. Jensen
Space Dynamics Laboratory, North Logan, UT, USA

Using COMSOL Multiphysics, studies were performed showing that thermomagnetic siphoning (TMS) is a sufficient manner of regulating the temperature of a bundle of current-carrying wires wrapped with a magnetorheological fluid (MRF) jacket. Because of Curie’s Law, the cooler MRF on the ... En savoir plus

Multiphysics Design of a Klystron Buncher

A. Leggieri [1], D. Passi [1], F. Di Paolo [1], G. Saggio [1]
[1] University of Rome, Rome, Italy

The Multiphysics design of a 130 GHz klystron Buncher cavity is described in this paper. In this high frequency range, dimensions are critical and expose the device to multiple physics effects, due to the power dissipations, affecting the electromagnetic performances. The proposed device ... En savoir plus

Exergy Analysis of a Water Heat Storage Tank

F. Dammel[1], J. Winterling[1], K. J. Langeheinecke[2], P. Stephan[3]
[1]Institute of Technical Thermodynamics, Technische Universität Darmstadt, Germany
[2]IAV, Gifhorn, Germany
[3]Institute of Technical Thermodynamics/Center of Smart Interfaces, Technische Universität, Darmstadt, Germany

A combined heat and power (CHP) plant generates both electricity and useful heat. A heat storage tank enables a decoupling of electricity and heat delivery. In this study a cylindrical hot water storage tank is considered. Charging, holding time and discharging are numerically simulated ... En savoir plus

Combined Analytical and Numerical Modeling of a Resonant MEMS Sensor for Viscosity and Mass Density Measurements

S. Cerimovic[1], R. Beigelbeck[2], H. Antlinger[3], J. Schalko[2], B. Jakoby[3], and F. Keplinger[1]
[1]Institute of Sensor and Actuator Systems, Vienna University of Technology, Vienna, Austria
[2]Institute for Integrated Sensor Systems, Austrian Academy of Sciences, Wiener Neustadt, Austria
[3]Institute for Microelectronics and Microsensors, Johannes Kepler University Linz, Linz, Austria

A resonant MEMS sensor for viscosity and mass density measurements of liquids was modeled. The device is based on Lorentz-force excitation and features an integrated piezoresistive readout. The core sensing element is a rectangular vibrating plate suspended by four beam springs. The ... En savoir plus

Modeling the Behavior of a Polymer Electrolyte Membrane within a Fuel Cell Using COMSOL

S. Beharry[1]
[1]University of the West Indies, St. Augustine, Trinidad and Tobago

One viable alternative to non-renewable fossil fuels is the fuel cell. A special class of FC i.e. Proton Exchange Membrane Fuel Cell (PEMFC) has been investigated during the present study. Membrane is a very important part of a PEMFC as most ohmic losses occurs here and limits the ... En savoir plus

An Analysis of Skimboard Hydrodynamics

N.D. Barnett[1], and E. Gutirrez-Miravete[2]
[1]General Dynamics-Electric Boat, Kingston, Rhode Island, USA
[2]Rensselaer at Hartford, Hartford, Connecticut, USA

This paper report on a study of the hydrodynamics of skimboards and surfboards using the computational fluid dynamics (CFD) module in COMSOL. The study analyzes the flow in a thin water layer underneath a skim board in a 2-D Cartesian coordinate. Three different sets of boundary ... En savoir plus

Model Development and Implementation of a Membrane Shift Reactor

J. Völler[1], M. Follmann[1], C. Bayer[1], and T. Melin[1]

[1]AVT Chemical Process Engineering, RWTH Aachen University, Aachen, Germany

Low temperature fuel cells require hydrogen of high purity for electricity production to avoid catalyst poisoning. To purify hydrogenrich flue gases from hydrocarbon steam reforming membrane shift reactors with a metal membranes may be utilized. A model of a tubular membrane shift ... En savoir plus

Numerical Investigation of Strouhal Frequencies of Two Staggered Bluff Bodies

Eswaran M[1], P. Goyal[1], Anu Dutta[1], G.R. Reddy[1], R. K. Singh [1], K.K. Vaze[1]
[1]Bhabha Atomic Research Centre, Mumbai, India

A 2-D unsteady viscous flow around two cylinders is studied by numerical solutions of the unsteady Navier-Stokes equations with a finite element formulation using COMSOL Multiphysics®. The results of a numerical investigation of the Strouhal frequencies of two identical, stationary, ... En savoir plus

An MHD Study of the Behavior of an Electrolyte Solution Using 3D Numerical Simulation

L. P. Aoki[1], H. E. Schulz[1], M. G. Maunsell[1]
[1]University of São Paulo, São Carlos, SP, Brazil

This article considers a closed water circuit with square cross section filled with an electrolyte fluid. The conductor fluid was moved using an electromagnetic pump, in which a permanent magnet generates a magnetic field and electrodes generate the electric field in the flow. Thus, the ... En savoir plus

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