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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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Boston 2025

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impedance

Modeling Ferrofluid Sloshing Vibration Energy Harvesting Using Level-Set Method

N. Anand¹, R. Gould¹
¹North Carolina State University, Raleigh, NC, USA

Ferrofluid sloshing vibration energy harvesters are the recent addition in the domain of vibration energy harvesting systems. These systems are unique in their use of a liquid state transduction mechanism to harvest ambient vibrations/oscillations to generate electric power. In this ... En savoir plus

COMSOL® Simulation for Scanning Microwave Microscopic Experiments

T. Le Quang [1], D. Vasyukov [1], A. Buchter [1], J. Hoffmann [1], M. Zeier [1],
[1] Eidgenössisches Institut für Metrologie (METAS), Switzerland

In the EMPIR project ADVENT the Scanning Microwave Microscopy (SMM) is investigated. The SMM is a still rather novel member of the family of scanning probe microscope. It has attracted a lot of attention recently, because this instrument can be used to characterize various electrical ... En savoir plus

Development of a Wideband Steerable Acoustic Metasurface with COMSOL®

H. Lissek [1], E. Rivet [1], T. Laurence [1], R. Fleury [2],
[1] Ecole Polytechnique Fédérale de Lausanne, Signal Processing Laboratory LTS2, Switzerland
[2] Ecole Polytechnique Fédérale de Lausanne, Laboratory of Wave Engineering LWE, Switzerland

The recent introduction of acoustic metamaterials and metasurfaces in the literature has triggered an tremendous interest in the scientific community, with their capability to achieve extraordinary acoustic properties for various acoustic and noise control applications, although limited ... En savoir plus

Resonances in Tapered Double-Port TEM Waveguides

J. Kaerst
HAWK, Fachhochschule Hildesheim/Holzminden/Göttingen, Germany

In this paper resonances in tapered double-port TEM waveguides are used as benchmark for simulations. FEM simulations with COMSOL Multiphysics® and simulations using generalised telegraphist's equations with MATLAB® are compared to ananalytical method capable of calculating the ... En savoir plus

Exploring a Cost-Effective Approach for Digital Radio Broadcasting Service Coverage Inside Tunnels

A. De Vita¹, B. Sacco¹
¹Centre for Research, Technology Innovation and Experimentation, RAI Radiotelevisione Italiana, Torino, Italy

In the recent years, Rai Research Centre (CRITS) has been involved in investigating solutions to guarantee a satisfactory coverage of Digital Audio Broadcasting (DAB) service, in the 200 MHz frequency band, for challenging scenarios like tunnels. Preliminary field tests receiving the RF ... En savoir plus

Coupled Structural and Magnetic Models: Linear Magnetostriction in COMSOL

J. Slaughter[1]
[1]Etrema Products, Inc., Ames, Iowa, USA

Accurate modeling of magnetostrictive materials and devices requires coupling of electrical, magnetic, mechanical, and possibly acoustic domains. There are relatively few finite element software packages that include all these physical models and even fewer that include magnetostrictive ... En savoir plus

Spectroscopic Modeling of Photoelectrochemical Water Splitting

P. Cendula [1], J. O. Schumacher [1],
[1] Institute of Computational Physics, Zurich University of Applied Sciences, Winterthur, Switzerland

A photoelectrochemical (PEC) cell uses solar energy to split water to hydrogen and oxygen in single integrated device. Electrochemical impedance spectroscopy is a suitable tool to characterize recombination and reaction mechanisms in PEC cell. Full numerical drift-diffusion calculations ... En savoir plus

Modeling of High-Speed PCB-Interconnects, Vias and Connectors for the Estimation of SI-Losses

A. K. Palit [1],
[1] ZF-Lemförder Electronic GmbH (ZF-Friedrichshafen AG. Group), Germany

Estimation of both single-ended (SE) and differential-pair (DP) impedances of high-speed PCB-traces/interconnects, vias and connectors is very important for the high-speed PCB (layout) design. This is because, the mismatch in line-impedances/improper line-termination results in a ... En savoir plus

Frequency Dependent UEP Signatures of Naval Vessels Modeled by a Current Dipole

C. Broecheler [1], Ch. Thiel [1], A. Rennings [1], F. Ludwar [2], J. Doose [2], D. Erni [1],
[1] General and Theoretical Electrical Enigneering (ATE), University of Duisburg-Essen, and CENIDE-Center for Nanointegration Duisburg-Essen, Duisburg, Germany
[2] Technical Center for Ships and Naval Weapons, Naval Technology and Research (WTD71), Eckernförde, Germany

The underwater electric potential (UEP) signature of naval vessels poses a severe threat as it is detectable by advanced sea mines. The signature depends also on the environment, mainly the water-seabed interface, leading in summary to the total UEP signature. The seabed has a ... En savoir plus

Electromagnetic Design of an RF-Coil Transceiver for NQR-Based Explosive Detection

P. Farantatos [1], J. Barras [1], I. Poplett [1], P. Kosmas [1],
[1] King's College London, UK

In the humanitarian demining setting, it is crucial to detect landmines with reliable sensing performance. As Nuclear Quadrupole Resonance (NQR) is an effective method for detecting explosive materials, our group is currently developing the world’s first low-cost system for anti-vehicle ... En savoir plus

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