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À la conférence COMSOL 2025, des ingénieurs, des chercheurs et des scientifiques du monde entier ont présenté leur utilisation de la modélisation et de la simulation dans tous les grands secteurs d'activité et dans le monde universitaire. Utilisez l'outil de recherche rapide pour trouver une présentation spécifique ou filtrez par sujet ou par lieu d'événement.

ISBN: 978-1-7364524-3-1

Terme recherché:

2014 - All

Numerical Simulation of Electrostatic Charging Droplets in Microfluidic Devices

S. Yao[1], H. Zhou[1]
[1]HKUST, Hong Kong, China

In this paper, the mechanism of charging process was simulated and analyzed. The simulation was conducted using COMSOL Multiphysics® software, based on the laminar two-phase flow level-set interface coupling with the electrostatic interface. Meanwhile, different parameters (such as the ... En savoir plus

Research of Dispersion Characters in Hexagonal Photonic Crystal Fiber Based on a COMSOL Multiphysics® Model

X. Jiang[1], X. Kong[1], J. Wang[1], Q. Wang[2]
[1]School of Mathematics and Physics, Changzhou University, Changzhou, Jiangsu, China
[2]Institute of Modern Optical Technologies, Soochow University, Suzhou, Jiangsu, China

It is a complex problem to calculate the photonic crystal fiber model, and the methods of plane wave expansion, Hermite-Guasssian function and beam propagation have been analyzed. Finally the multipole method is adopted for solving problem. The hexagonal air holes in cladding have been ... En savoir plus

Research on a Numerical Simulation Method about Harmonic Distortion of Loudspeaker

X. Lu[1]
[1]Zhejiang Electro-Acoustic R&D Center, CAS, Zhejiang, China

扬声器的失真问题一直受电声业界的关注，尤其是谐波失真，它是影响扬声器重放声音音质的主要因素之一。本文提出了一种基于 COMSOL Multiphysics® 软件预测扬声器谐波失真的仿真分析方法。该方法需建立包括磁场、振动系统和声场等多个物理场的扬声器的全模型，给扬声器加载一单频电压信号，用瞬态分析的方法可求解得到该频率激励下的扬声器的多个重要物理量随时间的变化函数，如流经音圈的电流I(t)、音圈的受力F(t)、振动系统表面上任意点的位移x(t)，以及声场中任意点的声压P(t)等。给扬声器加载一个时间长度为0.1s的单频电压信号，仿真分析所得的防尘帽顶点的位移曲线 ... En savoir plus

Numerical Prediction of Weld Bead Geometry in Plasma Arc Welding of Titanium Sheets

V. Dhinakaran[1], S. Khope[1], N. S. Shanmugam[1] , K. Sankaranarayanasamy[1]
[1]National Institute of Technology, Tiruchirappalli, Tiruchirappalli, Tamil Nadu, India

Plasma Arc Welding (PAW) is one of the important arc welding processes commonly used in electronics, medical, automotive and aerospace industries due its high accuracy, finishing, and ability of welding any hard materials. It is an extension of Tungsten Inert Gas welding (TIG or GTAW). ... En savoir plus

Multiphysics Simulation of Conjugated Heat Transfer and Electrostatic Field on Application of Electrostatic Chucks (ESCs) Using 3D-2D Model Coupling

K. Hsu[1], C. Li[1], J. Yang[1], J. Chen[1], J. Chang[1]
[1]Institute of Applied Mechanics, National Taiwan University, Taipei, Taiwan

There has been considerable interest in the electrostatic chucks (ESCs) in recent years. Wafer cooling by means of gas at the backside of wafers plays an important role in electrostatic chucks and it uses an electrostatic potential to secure the wafer. In this study, the correlation of ... En savoir plus

Simulation of Microstructured Rolling-Sliding Contacts

M. Weschta[1], S. Tremmel[1], S. Wartzack[1]
[1]Engineering Design, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Bavaria, Germany

To reduce friction in lubricated tribological contacts, the surfaces of the contacting bodies can be microstructured to improve lubricating conditions. For lower loaded contacts this approach has already reached industrial applications, e.g. the piston-liner contact. For higher loaded ... En savoir plus

Numerical Simulation of Carbon Steel Corrosion Exposed to Flowing NaCl Solutions Through an Annular Duct

A. Soliz[1], K. Mayrhofer[1], L. Caceres[2]
[1]Department of Interface Chemistry & Surface Engineering, Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany
[2]Department of Chemical Engineering, University of Antofagasta, Antofagasta, Chile

A three-dimensional mathematical model under stationary conditions have been established to understand the corrosion of carbon steel cylindrical samples immersed in flowing NaCl solution through an annular duct. The migration, diffusion and convection mass transfer mechanisms were solved ... En savoir plus

Modeling of a Multilayered Propellant Extrusion in Concentric Cylinders

S. Durand[1,3], C. Dubois[1], P. Lafleur[1], V. Panchal[2], D. Park[2], D. Lepage[3], P. Paradis[3]
[1]École Polytechnique de Montréal, Montréal, QC, Canada
[2]US Army ARDEC, Picatinny Arsenal, NJ, USA
[3]General Dynamics OTS Canada Valleyfield, Valleyfield, QC, Canada

A novel propellant technology requires extruding two formulations with differential burning rates together as a multilayered propellant. This propellant is processed into a concentric cylinder configuration, in the form of slow-fast-slow with single perforation. The material uses ... En savoir plus

Comparison of Different Passive Oil-Water Mixing Schemes in a Flow Loop

A. Chaudhuri[1]
[1]Materials Synthesis & Integrated Devices, Los Alamos National Laboratory, Los Alamos, NM, USA

Oil and water are immiscible fluids and they tend to separate very easily when introduced into a flow stream from two different sources in a flow loop. This model studies the development of mixture volume fraction in an oil-water-flow loop with 3 different passive mixing schemes: (i) ... En savoir plus

Heat Transfer in Crossflow Heat Exchangers for Application with Microreactors

R. Pryor[1]
[1]Pryor Knowledge Systems, Inc., Bloomfield Hills, MI, USA

This paper explores methods of improving the heat transfer coefficient in a crossflow heat exchanger as would be employed in conjunction with an experimental or production microreactor. This derivation of the Cross-Flow Heat Exchanger from the COMSOL Multiphysics® software Model Library ... En savoir plus

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Collection of Papers, Posters, and Slideshows Accepted by the Program Committee