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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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Determination of Process Parameters for Electron Beam Sintering (EBS)

M. F. Zäh, S. Lutzmann, M. Kahnert, and F. Walchshäusl
iwb Anwenderzentrum Augsburg, TU München, Augsburg, Germany

Additive Layer Manufacturing (ALM) methods, like Electron Beam Sintering (EBS), constitute an interesting process concerning the production of small series and customized products. However, transient effects occur during processing due to the different physical principles of an electron ... En savoir plus

Simulation of Dynamic Thermal Fields Assisting DMLS Additive Manufacturing of Biocompatible Ti-Alloy

E. Lacatus [1], G. C. Alecu [2], M. Sopronyi [3],
[1] Polytechnic University of Bucharest, Bucharest, Romania
[2] Groupe Renault, Bucharest, Romania
[3] National Institute for Laser, Plasma and Radiation Physics (INFLPR), Magurele, Romania

For the complex 3D biocompatible metallic parts, with high level of customization, used in medical prosthesis and implants Direct Metal Laser Sintering (DMLS) and Selective Laser Melting (SLM) are the most common Additive Manufacturing technologies used nowadays. However, both ... En savoir plus

$Diffraction efficiency of gratings with sinusoidal profile$

Diffraction efficiency of gratings with sinusoidal profile

P. Janicek¹, V. Stepankova¹, M. Kurka¹, K. Palka¹, A. Ventura², J. G. Hayashi²
¹FChT, University of Pardubice, Czechia
²ORC, University of Southampton, United Kingdom

The aim of this study is to compare the diffraction efficiency of a sinusoidal diffraction grating numerically calculated using COMSOL Multiphysics® with the measured results performed with a custom-made equipment and calculations using Bessel functions. A diffraction grating with the ... En savoir plus

Heat Transfer Simulation for Reliability Estimation of Additive Manufacturing Process using the COMSOL Multiphysics® Software

K. W. K. Leung [1], A. Keshtgar [1], N. Iyyer [1],
[1] Technical Data Analysis, Inc., Falls Church, VA, USA

Selective laser melting (SLM) is a popular additive manufacturing (AM) process that creates 3D metal parts by fusing fine metallic powder together. However, it remains difficult to certify AM part as its final quality can largely vary, depending on material and process variations. These ... En savoir plus

Waveguides and Interferometers : Simulations studies on Photonic Devices using COMSOL Multiphysics®

A. Gayathri[1], S. Kale[1]
[1]Defence Institute Of Advanced Technology, India

Lithium Niobate is a popular material for its non-liner optical properties, which is explored for various applications. Of many applications, use of these materials as photonic devices is indeed novel, in recent times. These photonic devices are set to revolutionise the silicon ... En savoir plus

3D Analyses of Changes in Free Bubble-Induced Stresses on Blood Vessel Wall in Ultrasound Therapy

R. Singh¹, X. Yang¹
¹University of Kansas, Lawrence, Kansas, KS, USA

Microbubble oscillations in the presence of ultrasound wave inside blood vessel have been widely studied for therapeutic applications like drug and gene delivery[1], blood-brain barrier opening[2], and lysis of blood clot[3] and cell membrane[4]. An oscillating bubble exerts stresses on ... En savoir plus

Plasmonic Properties of Bimetal Nanoshell Cylinders and Spheres

K. Ehrhold[1], S. Christiansen[1,2], and U. Gösele[1]
[1]Max Planck Institute of Microstructure Physics, Halle, Germany,
[2]Institute of Photonic Technology, Jena, Germany

Plasmonics is a new branch of the fascinating field of photonics and develops concepts to quench light beyond the diffraction limit and enhance electromagnetic fields. These enhancements occur in metals as localized surface plasmon polaritons (LSP) a coupling of the surface density ... En savoir plus

Optimization of the Supersonic Gas Jets' Parameters for In-Gas-Jet Nuclear Spectroscopy Studies

A. Zadvornaya [1], Y. Kudryavtsev [1],
[1] KU Leuven, Leuven, Belgium

The in-gas-jet laser ionization and spectroscopy method (Figure 1) that has been developed at KU Leuven allows to produce and to perform laser spectroscopy of short-lived radioactive isotopes created in different types of nuclear reactions [1,2]. To realize the advantages of in-gas-jet ... En savoir plus

Fabrication of 4130 Steel Powder for 3D Printing and Its Simulation Study

Herng Tun Seng [1],
[1] National University of Singapore, Singapore

AISI 4130 grade is an alloy steel containing chromium and molybdenum as strengthening agents. The steel has a good strength, toughness, fatigue strength, weldability and machinability. These intriguing properties motivated us to make the 4130 powder via milling process and explore the ... En savoir plus

Analysis of the Absorption Phenomena through the Use of Finite Element Method

M. Robles-Agudo[1], R. Velázquez-Hernández[1], P. Duran[1], I. Rojas-Rodríguez[1]
[1]UNIVERSIDAD TECNOLÓGICA DE QUERETARO, Mexico

We present a numerical model using the Finite Element Method (FEM) with COMSOL Multiphysics® simulation software to characterize Beer-Lambert law. The Heat Transfer Module was used in the program developed to calculate absorption and propagation of heat wave phenomena in a material. ... En savoir plus

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