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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

Terme recherché:

"electromagnetic*"

Enhanced Spontaneous Emission in Plasmonic Nanostructures

Jun Yi [1], Song-Yuan Ding [2],
[1] State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
[2] Collaborative Innovation Center of Chemistry for Energy Materials, Xiamen University, Xiamen, China

Spontaneous emission -- an electron in an excited state of an emitter spontaneously decays to another state with lower energy -- plays an important role in determining the performance of light-emitting diodes, fluorescent dyes, colorants, solar cells, etc. The efficiency of spontaneous ... En savoir plus

Calculating Impedance of a Common Mode Choke in High Frequency Regime

J. Lin [1],
[1] Pitotech Co. Ltd., Changhua City, Taiwan

Common mode chokes are good EMI filters in electronic power systems [1]. For such devices, values for their impedance are critical to their performances as noise filters. In this study, a two-step finite element approach is employed to study the impedance variations of a ferrite-core ... En savoir plus

Modeling Microwave Chiral Material Based On Crank Resonators Arrays Using COMSOL Multiphysics

J. Muñoz[1], G.J. Molina [1], M.M. Rojo[1]
[1]Dpto. Electromanetismo y Electrónica, Facultad de Química, Universidad de Murcia, Campus Espinardo, Murcia, Spain

Electromagnetic metamaterials present exotic and unusual properties hardly to be found in nature with many potential applications. They are usually built by distributing small resonant structures in periodical lattices. If the structure has chiral symmetry, the medium is called chiral ... En savoir plus

Simulation of a Rotary Magnetorheological Damper

D. Harder [1], L. Fromme [1], R. Naumann [2],
[1] University of Applied Sciences Bielefeld, Department of Engineering Sciences and Mathematics, Bielefeld, Germany
[2] University of Applied Sciences Bielefeld, ISyM – Institute of System Dynamics and Mechatronics, Bielefeld, Germany

This paper presents a simulation model of a rotary damper filled with a magnetorheological fluid (MRF). The most important characteristic of the MRF is the variable viscosity, which can be controlled by an external magnetic field. In the simulation model, the fluid is described as a ... En savoir plus

Numerical study of the free surface in silicon melting by Cold crucible technique

S.Al Radi¹, R.Ernst, H.Abouchi, E.Favre and K. Zaidat¹
¹Grenoble Alpes University, SIMAP, St Martin d'Hères, France

Currently in the semiconductor industry more than 80% of silicon crystal are grown by the Czochralski (Cz) method. In this method, fused silica (SiO2) crucibles and graphite heaters are used inside furnaces. The surface of the crucibles, which are in contact with the molten silicon, is ... En savoir plus

Scan Angle Stability of a Second-Order Plasma-Switched Frequency Selective Surface

L. W. Cross[1], M. J. Almalkawi[2]
[1]Imaging Systems Technology, Toledo, OH, USA
[2]EECS Department, College of Engineering, University of Toledo, Toledo, OH, USA

Large-area, light-weight electromagnetic protection (EP) structures are needed to protect sensitive microwave sensors and communications systems from high-power microwave (HPM) and electromagnetic pulse (EMP) threats. This paper presents the use of COMSOL Multiphysics® for ... En savoir plus

Comparison and Optimization of MRF Dampers Performance with Different Piston Coil Winding Orientation using COMSOL Multiphysics®

P. Singh[1], S. Panda[2]
[1]Indian Institute of Technology (BHU), Varanasi, India
[2]IIT (BHU), Varanasi, India

Undesirable shocks and vibrations are a noteworthy issue in numerous human exercises and domains. Therefore, various damping techniques are used to minimise vibrations, can be classified as active, Semi-active and passive damping. The development of semi-actively controlled ... En savoir plus

EM Design and Analysis of Antenna Enclosed Ground-Based Radome

R. N.[1], S. Durgesh[1], B. Choudhury[1], R. Nair[1]
[1]CSIR-NATIONAL AEROSPACE LABORATORIES, India

Radome is a dielectric Electromagnetic (EM) transparent structure that encloses antenna and protects from various environmental conditions. The advancements in the field of high performance antennas increase the challenges in EM design and analysis of radome. The presence of radome ... En savoir plus

Using COMSOL® for the Development of the UK’s Second Hyperloop Prototype

A. Jocas [1], I. C. H, Chan [1], A. Malekos [1], H. P. Chan [1],
[1] The University of Edinburgh, UK

Hyperloop is a future concept of mass transportation proposed by Elon Musk. It uses electromagnetic propulsion to accelerate a passenger or cargo pod through a low-pressure tube. HYPED, the University of Edinburgh’s Hyperloop Team has created a prototype that uses linear halbach arrays ... En savoir plus

Use of COMSOL® AC/DC Module to Model a EM Sensor Deployed to Monitor Steel Transformation

J. Shen [1], W. Jacobs [1], L. Zhou [1], P. Hunt [2], C. Davis [1],
[1] Advanced Steel Research Centre, WMG, University of Warwick, Coventry, UK
[2] Primetals Technology Limited, Christchurch, UK

Real-time microstructure monitoring is important during the cooling process for hot-rolled strip steel production, as the microstructure formed determines the mechanical properties required by customers. The materials magnetic and electric properties, relative permeability and ... En savoir plus

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